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Bug#1014793: linux-image-5.10.0-16-amd64: Kernel crashes while serving NFS

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Arne Nordmark

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Jul 12, 2022, 2:30:04 AM7/12/22
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Package: src:linux
Version: 5.10.127-1
Severity: normal

Dear Maintainer,

The new kernel in Debian 11.4 seems unstable and crashes when serving
NFS. On two different computers, these lockups happens within minutes,
typically when a client runs firefox on an NFS-mounted home directory.
Typically the servers lock up without any printout, but on one occasion,
the following was logged:

jul 10 08:35:13 ano4 kernel: general protection fault, probably for
non-canonical address 0x2f48514544455145: 0000 [#1] SMP PTI
jul 10 08:35:13 ano4 kernel: CPU: 2 PID: 1244 Comm: nfsd Not tainted
5.10.0-16-amd64 #1 Debian 5.10.127-1
jul 10 08:35:13 ano4 kernel: Hardware name: System manufacturer System
Product Name/P5Q DELUXE, BIOS 2201 05/21/2009
jul 10 08:35:13 ano4 kernel: RIP: 0010:fsnotify+0x2d9/0x570
jul 10 08:35:13 ano4 kernel: Code: 78 08 44 0b 30 44 0b 68 40 48 83 c1
01 48 83 f9 04 75 d9 66 66 66 66 90 44 8b 4c 24 1c 44 89 e8 f7 d0 45 21
f1 41 85 c1 74 4f <49> 8b 3f 48 8b 07 48 85 c0 0f 84 0a 01 00 00 48 8d
7c 24 38 44 89
jul 10 08:35:13 ano4 kernel: RSP: 0018:ffffabe901fa3bc8 EFLAGS: 00010202
jul 10 08:35:13 ano4 kernel: RAX: 00000000bab6aebe RBX: 0000000000000001
RCX: 0000000000000004
jul 10 08:35:13 ano4 kernel: RDX: 0000000000035a00 RSI: 0000000000000001
RDI: 2f48514544455145
jul 10 08:35:13 ano4 kernel: RBP: ffffabe901fa3c20 R08: 0000000000000001
R09: 0000000000000002
jul 10 08:35:13 ano4 kernel: R10: 0000000000000002 R11: 0000000000000002
R12: 0000000000000002
jul 10 08:35:13 ano4 kernel: R13: 0000000045495141 R14: 00000000424d6757
R15: 2f48514544455145
jul 10 08:35:13 ano4 kernel: FS: 0000000000000000(0000)
GS:ffff939527d00000(0000) knlGS:0000000000000000
jul 10 08:35:13 ano4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
jul 10 08:35:13 ano4 kernel: CR2: 0000560b8cee4000 CR3: 00000001034da000
CR4: 00000000000406e0
jul 10 08:35:13 ano4 kernel: Call Trace:
jul 10 08:35:13 ano4 kernel: __fsnotify_parent+0xe7/0x2d0
jul 10 08:35:13 ano4 kernel: ? ext4_buffered_write_iter+0xce/0x160 [ext4]
jul 10 08:35:13 ano4 kernel: ? do_iter_readv_writev+0x152/0x1b0
jul 10 08:35:13 ano4 kernel: do_iter_write+0xc8/0x1b0
jul 10 08:35:13 ano4 kernel: nfsd_vfs_write+0x175/0x510 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd4_write+0x135/0x1b0 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd4_proc_compound+0x40d/0x680 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd_dispatch+0xd3/0x180 [nfsd]
jul 10 08:35:13 ano4 kernel: svc_process_common+0x3d4/0x6d0 [sunrpc]
jul 10 08:35:13 ano4 kernel: ? nfsd_svc+0x320/0x320 [nfsd]
jul 10 08:35:13 ano4 kernel: svc_process+0xb7/0xf0 [sunrpc]
jul 10 08:35:13 ano4 kernel: nfsd+0xe8/0x140 [nfsd]
jul 10 08:35:13 ano4 kernel: ? nfsd_destroy+0x60/0x60 [nfsd]
jul 10 08:35:13 ano4 kernel: kthread+0x11b/0x140
jul 10 08:35:13 ano4 kernel: ? __kthread_bind_mask+0x60/0x60
jul 10 08:35:13 ano4 kernel: ret_from_fork+0x22/0x30
jul 10 08:35:13 ano4 kernel: Modules linked in: dm_snapshot dm_bufio tun
cpufreq_ondemand cpufreq_powersave cpufreq_conservative
cpufreq_userspace aes_generic libaes crypto_simd cryptd glue_helper cbc
cts rpcsec_gss_krb5 sit tunnel4 ip_tunnel nft_nat sch_fq_codel rc_pinnacl
e_pctv_hd em28xx_rc rc_core si2157 si2168 i2c_mux em28xx_dvb dvb_core
snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio ivtv_alsa
tuner_simple tuner_types snd_hda_codec_hdmi wm8775 snd_hda_intel tda9887
tda8290 snd_intel_dspcfg tea5767 soundwire_intel tuner
soundwire_generic_allocation snd_soc_core snd
_compress soundwire_cadence cx25840 snd_hda_codec ivtv snd_hda_core
snd_hwdep soundwire_bus em28xx kvm_intel radeon tveeprom snd_pcm cx2341x
kvm ttm videodev snd_timer snd irqbypass soundcore drm_kms_helper mc
serio_raw evdev cec i2c_algo_bit iTCO_wdt intel_pmc_bxt
iTCO_vendor_support pcspkr watchdog sg acpi_
cpufreq asus_atk0110 button nft_chain_nat nf_nat nft_reject_inet
nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_counter nft_ct
jul 10 08:35:13 ano4 kernel: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
coretemp firewire_sbp2 nf_tables nfnetlink loop nfsd parport_pc ppdev
nfs_acl lockd lp auth_rpcgss parport grace drm fuse sunrpc configfs
ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 raid10 raid4
56 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c crc32c_generic raid0 multipath linear dm_mod raid1
md_mod sd_mod hid_generic t10_pi ata_generic crc_t10dif
crct10dif_generic st crct10dif_common usbhid pata_marvell hid ahci
libahci mpt3sas firewire_ohci firewire_core aic7xxx
crc_itu_t libata skge ehci_pci uhci_hcd scsi_transport_spi lpc_ich
i2c_i801 sky2 ehci_hcd psmouse i2c_smbus raid_class scsi_transport_sas
usbcore scsi_mod usb_common floppy
jul 10 08:35:13 ano4 kernel: ---[ end trace 159cb95f57d30ea4 ]---
jul 10 08:35:13 ano4 kernel: RIP: 0010:fsnotify+0x2d9/0x570
jul 10 08:35:13 ano4 kernel: Code: 78 08 44 0b 30 44 0b 68 40 48 83 c1
01 48 83 f9 04 75 d9 66 66 66 66 90 44 8b 4c 24 1c 44 89 e8 f7 d0 45 21
f1 41 85 c1 74 4f <49> 8b 3f 48 8b 07 48 85 c0 0f 84 0a 01 00 00 48 8d
7c 24 38 44 89
jul 10 08:35:13 ano4 kernel: RSP: 0018:ffffabe901fa3bc8 EFLAGS: 00010202
jul 10 08:35:13 ano4 kernel: RAX: 00000000bab6aebe RBX: 0000000000000001
RCX: 0000000000000004
jul 10 08:35:13 ano4 kernel: RDX: 0000000000035a00 RSI: 0000000000000001
RDI: 2f48514544455145
jul 10 08:35:13 ano4 kernel: RBP: ffffabe901fa3c20 R08: 0000000000000001
R09: 0000000000000002
jul 10 08:35:13 ano4 kernel: R10: 0000000000000002 R11: 0000000000000002
R12: 0000000000000002
jul 10 08:35:13 ano4 kernel: R13: 0000000045495141 R14: 00000000424d6757
R15: 2f48514544455145
jul 10 08:35:13 ano4 kernel: FS: 0000000000000000(0000)
GS:ffff939527d00000(0000) knlGS:0000000000000000
jul 10 08:35:13 ano4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
jul 10 08:35:13 ano4 kernel: CR2: 0000560b8cee4000 CR3: 00000001034da000
CR4: 00000000000406e0
jul 10 08:35:13 ano4 kernel: list_del corruption. next->prev should be
ffff939408b1d6a0, but was 4141514142455142
jul 10 08:35:13 ano4 kernel: ------------[ cut here ]------------
jul 10 08:35:13 ano4 kernel: kernel BUG at lib/list_debug.c:54!
jul 10 08:35:13 ano4 kernel: invalid opcode: 0000 [#2] SMP PTI
jul 10 08:35:13 ano4 kernel: CPU: 2 PID: 1242 Comm: nfsd Tainted: G
D 5.10.0-16-amd64 #1 Debian 5.10.127-1
jul 10 08:35:13 ano4 kernel: Hardware name: System manufacturer System
Product Name/P5Q DELUXE, BIOS 2201 05/21/2009
jul 10 08:35:13 ano4 kernel: RIP: 0010:__list_del_entry_valid.cold+0x1d/0x47
jul 10 08:35:13 ano4 kernel: Code: c7 c7 b8 1e d2 8e e8 1a 14 ff ff 0f
0b 48 89 fe 48 c7 c7 48 1f d2 8e e8 09 14 ff ff 0f 0b 48 c7 c7 f8 1f d2
8e e8 fb 13 ff ff <0f> 0b 48 89 f2 48 89 fe 48 c7 c7 b8 1f d2 8e e8 e7
13 ff ff 0f 0b
jul 10 08:35:13 ano4 kernel: RSP: 0018:ffffabe901f93cf8 EFLAGS: 00010246
jul 10 08:35:13 ano4 kernel: RAX: 0000000000000054 RBX: ffff93940f10b800
RCX: 0000000000000000
jul 10 08:35:13 ano4 kernel: RDX: 0000000000000000 RSI: ffff939527d1ca00
RDI: ffff939527d1ca00
jul 10 08:35:13 ano4 kernel: RBP: ffff939408b1d690 R08: 0000000000000000
R09: ffffabe901f93b20
jul 10 08:35:13 ano4 kernel: R10: ffffabe901f93b18 R11: ffffffff8f2cb448
R12: ffff939408b1d6b0
jul 10 08:35:13 ano4 kernel: R13: ffff939408b1d6a0 R14: dead000000000100
R15: 0000000000000000
jul 10 08:35:13 ano4 kernel: FS: 0000000000000000(0000)
GS:ffff939527d00000(0000) knlGS:0000000000000000
jul 10 08:35:13 ano4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
jul 10 08:35:13 ano4 kernel: CR2: 0000560b8cee4000 CR3: 00000001034da000
CR4: 00000000000406e0
jul 10 08:35:13 ano4 kernel: Call Trace:
jul 10 08:35:13 ano4 kernel: fsnotify_detach_mark+0x44/0x90
jul 10 08:35:13 ano4 kernel: fsnotify_destroy_mark+0x1f/0x40
jul 10 08:35:13 ano4 kernel: nfsd_file_free+0xb7/0xe0 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd_file_close_inode_sync+0xfb/0x150 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd_unlink+0x244/0x250 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd4_remove+0x4c/0x130 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd4_proc_compound+0x40d/0x680 [nfsd]
jul 10 08:35:13 ano4 kernel: nfsd_dispatch+0xd3/0x180 [nfsd]
jul 10 08:35:13 ano4 kernel: svc_process_common+0x3d4/0x6d0 [sunrpc]
jul 10 08:35:13 ano4 kernel: ? nfsd_svc+0x320/0x320 [nfsd]
jul 10 08:35:13 ano4 kernel: svc_process+0xb7/0xf0 [sunrpc]
jul 10 08:35:13 ano4 kernel: nfsd+0xe8/0x140 [nfsd]
jul 10 08:35:13 ano4 kernel: ? nfsd_destroy+0x60/0x60 [nfsd]
jul 10 08:35:13 ano4 kernel: kthread+0x11b/0x140
jul 10 08:35:13 ano4 kernel: ? __kthread_bind_mask+0x60/0x60
jul 10 08:35:13 ano4 kernel: ret_from_fork+0x22/0x30
jul 10 08:35:13 ano4 kernel: Modules linked in: dm_snapshot dm_bufio tun
cpufreq_ondemand cpufreq_powersave cpufreq_conservative
cpufreq_userspace aes_generic libaes crypto_simd cryptd glue_helper cbc
cts rpcsec_gss_krb5 sit tunnel4 ip_tunnel nft_nat sch_fq_codel rc_pinnacl
e_pctv_hd em28xx_rc rc_core si2157 si2168 i2c_mux em28xx_dvb dvb_core
snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio ivtv_alsa
tuner_simple tuner_types snd_hda_codec_hdmi wm8775 snd_hda_intel tda9887
tda8290 snd_intel_dspcfg tea5767 soundwire_intel tuner
soundwire_generic_allocation snd_soc_core snd
_compress soundwire_cadence cx25840 snd_hda_codec ivtv snd_hda_core
snd_hwdep soundwire_bus em28xx kvm_intel radeon tveeprom snd_pcm cx2341x
kvm ttm videodev snd_timer snd irqbypass soundcore drm_kms_helper mc
serio_raw evdev cec i2c_algo_bit iTCO_wdt intel_pmc_bxt
iTCO_vendor_support pcspkr watchdog sg acpi_
cpufreq asus_atk0110 button nft_chain_nat nf_nat nft_reject_inet
nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_counter nft_ct
jul 10 08:35:13 ano4 kernel: nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
coretemp firewire_sbp2 nf_tables nfnetlink loop nfsd parport_pc ppdev
nfs_acl lockd lp auth_rpcgss parport grace drm fuse sunrpc configfs
ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 raid10 raid4
56 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c crc32c_generic raid0 multipath linear dm_mod raid1
md_mod sd_mod hid_generic t10_pi ata_generic crc_t10dif
crct10dif_generic st crct10dif_common usbhid pata_marvell hid ahci
libahci mpt3sas firewire_ohci firewire_core aic7xxx
crc_itu_t libata skge ehci_pci uhci_hcd scsi_transport_spi lpc_ich
i2c_i801 sky2 ehci_hcd psmouse i2c_smbus raid_class scsi_transport_sas
usbcore scsi_mod usb_common floppy
jul 10 08:35:13 ano4 kernel: ---[ end trace 159cb95f57d30ea5 ]---
jul 10 08:35:13 ano4 kernel: RIP: 0010:fsnotify+0x2d9/0x570
jul 10 08:35:13 ano4 kernel: Code: 78 08 44 0b 30 44 0b 68 40 48 83 c1
01 48 83 f9 04 75 d9 66 66 66 66 90 44 8b 4c 24 1c 44 89 e8 f7 d0 45 21
f1 41 85 c1 74 4f <49> 8b 3f 48 8b 07 48 85 c0 0f 84 0a 01 00 00 48 8d
7c 24 38 44 89
jul 10 08:35:13 ano4 kernel: RSP: 0018:ffffabe901fa3bc8 EFLAGS: 00010202
jul 10 08:35:13 ano4 kernel: RAX: 00000000bab6aebe RBX: 0000000000000001
RCX: 0000000000000004
jul 10 08:35:13 ano4 kernel: RDX: 0000000000035a00 RSI: 0000000000000001
RDI: 2f48514544455145
jul 10 08:35:13 ano4 kernel: RBP: ffffabe901fa3c20 R08: 0000000000000001
R09: 0000000000000002
jul 10 08:35:13 ano4 kernel: R10: 0000000000000002 R11: 0000000000000002
R12: 0000000000000002
jul 10 08:35:13 ano4 kernel: R13: 0000000045495141 R14: 00000000424d6757
R15: 2f48514544455145
jul 10 08:35:13 ano4 kernel: FS: 0000000000000000(0000)
GS:ffff939527d00000(0000) knlGS:0000000000000000
jul 10 08:35:13 ano4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
jul 10 08:35:13 ano4 kernel: CR2: 0000560b8cee4000 CR3: 00000001034da000
CR4: 00000000000406e0
jul 10 08:35:21 ano4 kernel: general protection fault, probably for
non-canonical address 0xb1c8a36300fbcf32: 0000 [#3] SMP PTI
jul 10 08:35:21 ano4 kernel: CPU: 1 PID: 1239 Comm: nfsd Tainted: G
D 5.10.0-16-amd64 #1 Debian 5.10.127-1
jul 10 08:35:21 ano4 kernel: Hardware name: System manufacturer System
Product Name/P5Q DELUXE, BIOS 2201 05/21/2009
jul 10 08:35:21 ano4 kernel: RIP: 0010:kmem_cache_alloc+0x89/0x1f0
jul 10 08:35:21 ano4 kernel: Code: 1e 18 72 49 8b 00 49 83 78 10 00 48
89 04 24 0f 84 42 01 00 00 48 85 c0 0f 84 39 01 00 00 41 8b 4c 24 28 49
8b 3c 24 48 01 c1 <48> 8b 19 48 89 ce 49 33 9c 24 b8 00 00 00 48 8d 4a
01 48 0f ce 48
jul 10 08:35:21 ano4 kernel: RSP: 0018:ffffabe900f3fd50 EFLAGS: 00010282
jul 10 08:35:21 ano4 kernel: RAX: b1c8a36300fbcee2 RBX: ffff939403b58070
RCX: b1c8a36300fbcf32

After reverting to boot the servers on kernel
linux-image-5.10.0-15-amd64 5.10.120-1 (but still using
linux-image-5.10.0-16-amd64 on the clients) the servers are stable again.

From client mount output: type nfs4
(rw,nosuid,nodev,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp6,timeo=600,retrans=2,sec=krb5p,local_lock=none

Thanks
Arne

-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: System manufacturer
product_name: System Product Name
product_version: System Version
chassis_vendor: Chassis Manufacture
chassis_version: Chassis Version
bios_vendor: American Megatrends Inc.
bios_version: 1701
board_vendor: ASUSTeK Computer INC.
board_name: P8P67-M
board_version: Rev x.0x

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core
Processor Family DRAM Controller [8086:0100] (rev 09)
Subsystem: ASUSTeK Computer Inc. P8P67/P8H67 Series Motherboard [1043:844d]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: snb_uncore

00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200/2nd Generation
Core Processor Family PCI Express Root Port [8086:0101] (rev 09)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 24
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff [size=4K]
Memory behind bridge: fe600000-fe6fffff [size=1M]
Prefetchable memory behind bridge: 00000000e0000000-00000000f01fffff
[size=258M]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA+ VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200
Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:844d]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 41
Region 0: Memory at fe708000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me

00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series
Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 05)
(prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:844d]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe707000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series
Chipset Family High Definition Audio Controller [8086:1c20] (rev 05)
Subsystem: ASUSTeK Computer Inc. 6 Series/C200 Series Chipset Family
High Definition Audio Controller [1043:8444]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 42
Region 0: Memory at fe700000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 25
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000d000-0000dfff [size=4K]
Memory behind bridge: fe500000-fe5fffff [size=1M]
Prefetchable memory behind bridge: 00000000f0400000-00000000f04fffff
[size=1M]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.2 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 3 [8086:1c14] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin C routed to IRQ 26
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: [disabled]
Memory behind bridge: [disabled]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin D routed to IRQ 27
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: [disabled]
Memory behind bridge: [disabled]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge
[8086:244e] (rev b5) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 28
Bus: primary=00, secondary=05, subordinate=06, sec-latency=0
I/O behind bridge: 0000c000-0000cfff [size=4K]
Memory behind bridge: fe400000-fe4fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.5 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 6 [8086:1c1a] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 29
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
I/O behind bridge: 0000b000-0000bfff [size=4K]
Memory behind bridge: fe300000-fe3fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.6 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 7 [8086:1c1c] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin C routed to IRQ 30
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
I/O behind bridge: 0000a000-0000afff [size=4K]
Memory behind bridge: [disabled]
Prefetchable memory behind bridge: 00000000f0300000-00000000f03fffff
[size=1M]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.7 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series
Chipset Family PCI Express Root Port 8 [8086:1c1e] (rev b5) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin D routed to IRQ 31
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
I/O behind bridge: [disabled]
Memory behind bridge: fe200000-fe2fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series
Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 05)
(prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:844d]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe706000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci

00:1f.0 ISA bridge [0601]: Intel Corporation P67 Express Chipset LPC
Controller [8086:1c46] (rev 05)
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard [1043:844d]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series
Chipset Family 6 port Desktop SATA AHCI Controller [8086:1c02] (rev 05)
(prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:844d]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 32
Region 0: I/O ports at f070 [size=8]
Region 1: I/O ports at f060 [size=4]
Region 2: I/O ports at f050 [size=8]
Region 3: I/O ports at f040 [size=4]
Region 4: I/O ports at f020 [size=32]
Region 5: Memory at fe705000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset
Family SMBus Controller [8086:1c22] (rev 05)
Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:844d]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
Region 0: Memory at fe704000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at f000 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801

01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Baffin [Radeon RX 550 640SP / RX 560/560X] [1002:67ff] (rev
cf) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Baffin [Radeon RX 550 640SP / RX
560/560X] [1043:0531]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 40
Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at f0000000 (64-bit, prefetchable) [size=2M]
Region 4: I/O ports at e000 [size=256]
Region 5: Memory at fe600000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: amdgpu
Kernel modules: amdgpu

01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI]
Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X] [1002:aae0]
Subsystem: ASUSTeK Computer Inc. Baffin HDMI/DP Audio [Radeon RX 550
640SP / RX 560/560X] [1043:aae0]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 43
Region 0: Memory at fe660000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168]
(rev 06)
Subsystem: TP-LINK Technologies Co., Ltd. TG-3468 Gigabit PCI Express
Network Adapter [7470:3468]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at d000 [size=256]
Region 2: Memory at fe500000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at f0400000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169

05:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe to
PCI Bridge [1b21:1080] (rev 01) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Bus: primary=05, secondary=06, subordinate=06, sec-latency=32
I/O behind bridge: 0000c000-0000cfff [size=4K]
Memory behind bridge: fe400000-fe4fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

06:00.0 Multimedia audio controller [0401]: Creative Labs EMU10k1 [Sound
Blaster Live! Series] [1102:0002] (rev 0a)
Subsystem: Creative Labs SB0220/0222 SBLive! 5.1 Digital [1102:8065]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at c080 [size=32]
Capabilities: <access denied>
Kernel driver in use: snd_emu10k1
Kernel modules: snd_emu10k1

06:00.1 Input device controller [0980]: Creative Labs SB Live! Game Port
[1102:7002] (rev 0a)
Subsystem: Creative Labs Gameport Joystick [1102:0020]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: I/O ports at c0a0 [size=8]
Capabilities: <access denied>
Kernel driver in use: Emu10k1_gameport
Kernel modules: emu10k1_gp

06:01.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306/7/8
[Fire II(M)] IEEE 1394 OHCI Controller [1106:3044] (rev c0) (prog-if 10
[OHCI])
Subsystem: ASUSTeK Computer Inc. Motherboard [1043:81fe]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (8000ns max), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at fe400000 (32-bit, non-prefetchable) [size=2K]
Region 1: I/O ports at c000 [size=128]
Capabilities: <access denied>
Kernel driver in use: firewire_ohci
Kernel modules: firewire_ohci

07:00.0 SATA controller [0106]: JMicron Technology Corp. JMB361 AHCI/IDE
[197b:2361] (rev 10) (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. JMB361 AHCI/IDE [1043:843f]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 5: Memory at fe310000 (32-bit, non-prefetchable) [size=512]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

07:00.1 IDE interface [0101]: JMicron Technology Corp. JMB368 IDE
controller [197b:0368] (rev 10) (prog-if 85 [PCI native mode-only
controller, supports bus mastering])
Subsystem: JMicron Technology Corp. JMB368 IDE controller [197b:1368]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 18
Region 0: I/O ports at b040 [size=8]
Region 1: I/O ports at b030 [size=4]
Region 2: I/O ports at b020 [size=8]
Region 3: I/O ports at b010 [size=4]
Region 4: I/O ports at b000 [size=16]
Capabilities: <access denied>
Kernel driver in use: pata_jmicron
Kernel modules: pata_jmicron, ata_generic

08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168]
(rev 06)
Subsystem: ASUSTeK Computer Inc. P8P67 and other motherboards [1043:8432]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at a000 [size=256]
Region 2: Memory at f0304000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at f0300000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169

09:00.0 USB controller [0c03]: ASMedia Technology Inc. ASM1042
SuperSpeed USB Host Controller [1b21:1042] (prog-if 30 [XHCI])
Subsystem: ASUSTeK Computer Inc. P8B WS Motherboard [1043:8488]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at fe200000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci


** USB devices:
Bus 003 Device 008: ID 0781:b6ba SanDisk Corp. CF SDDR-289
Bus 003 Device 007: ID 046d:0823 Logitech, Inc. HD Webcam B910
Bus 003 Device 006: ID 03f0:1617 HP, Inc LaserJet 3015
Bus 003 Device 005: ID 045e:00f9 Microsoft Corp. Wireless Desktop
Receiver 3.1
Bus 003 Device 004: ID 2013:025f PCTV Systems tripleStick 292e
Bus 003 Device 003: ID 2013:025f PCTV Systems tripleStick 292e
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0409:0058 NEC Corp. HighSpeed Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0b05:17cb ASUSTek Computer, Inc. Broadcom
BCM20702A0 Bluetooth
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: 11.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-15-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8), LANGUAGE
not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-5.10.0-16-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.140
ii kmod 28-1
ii linux-base 4.6

Versions of packages linux-image-5.10.0-16-amd64 recommends:
ii apparmor 2.13.6-10
ii firmware-linux-free 20200122-1

Versions of packages linux-image-5.10.0-16-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-efi-amd64 2.04-20
pn linux-doc-5.10 <none>

Versions of packages linux-image-5.10.0-16-amd64 is related to:
ii firmware-amd-graphics 20210315-3
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
ii firmware-linux-nonfree 20210315-3
ii firmware-misc-nonfree 20210315-3
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
ii firmware-realtek 20210315-3
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>

-- no debconf information

Salvatore Bonaccorso

unread,
Jul 13, 2022, 6:10:03 AM7/13/22
to
Control: tags -1 + moreinfo

Hello Arne,
As you seem to reliably reproduce the issue, do you have the
possiblity (on the nonproduction instance) to try to bisect down the
problem? Additionally to the bisect, on a testinstance were the issue
is reproducible, can you run a selfcompiled 5.10.130 upstream to see
if the problem is still present?

Regards,
Salvatore

Arne Nordmark

unread,
Jul 15, 2022, 4:40:04 AM7/15/22
to
Sorry for the late reply.

Den 2022-07-13 kl. 12:07, skrev Salvatore Bonaccorso:
> Control: tags -1 + moreinfo
>
> Hello Arne,
>

...

>
> As you seem to reliably reproduce the issue, do you have the
> possiblity (on the nonproduction instance) to try to bisect down the
> problem? Additionally to the bisect, on a testinstance were the issue
> is reproducible, can you run a selfcompiled 5.10.130 upstream to see
> if the problem is still present?

I have now set up a test environment, and been able to reproduce NFS
crashes with the Debian linux-image-5.10.0-16-amd64 and self-compiled
upstream v5.10.127 kernels.

I have not been able to get a self-compiled upstream v5.10.130 to crash.

As for bisection, I am not entirely clear what is expected from me. Do
you mean bisect the upstream kernels? Between which points? v5.10.120 to
v5.10.127?

Bisection would be a new experience for me, even compiling the kernel
seem like ages ago ... (using Debian since 0.93R6).

>
> Regards,
> Salvatore

Thanks again,
Arne

Salvatore Bonaccorso

unread,
Jul 15, 2022, 4:10:04 PM7/15/22
to
Hi Arne,

Thanks a lot for your time into debugging the issue.

On Fri, Jul 15, 2022 at 10:28:17AM +0200, Arne Nordmark wrote:
> Sorry for the late reply.
>
> Den 2022-07-13 kl. 12:07, skrev Salvatore Bonaccorso:
> > Control: tags -1 + moreinfo
> >
> > Hello Arne,
> >
>
> ...
>
> >
> > As you seem to reliably reproduce the issue, do you have the
> > possiblity (on the nonproduction instance) to try to bisect down the
> > problem? Additionally to the bisect, on a testinstance were the issue
> > is reproducible, can you run a selfcompiled 5.10.130 upstream to see
> > if the problem is still present?
>
> I have now set up a test environment, and been able to reproduce NFS crashes
> with the Debian linux-image-5.10.0-16-amd64 and self-compiled upstream
> v5.10.127 kernels.

Thats great. I have not reached yet the point to replicate it myself.
But it's good you have now a base test environment where it's safe to
experiment.

> I have not been able to get a self-compiled upstream v5.10.130 to crash.

That are good news.

> As for bisection, I am not entirely clear what is expected from me. Do you
> mean bisect the upstream kernels? Between which points? v5.10.120 to
> v5.10.127?

I would be interested to either pinpoint the regressing commit
upstream beween 5.10.120 and 5.10.127 or conversely the fixing commit
beween 5.10.127 upstream and 5.10.130 where you are not able anymore
to reproduce the error. What I can say, I have already imported
5.10.130 for furture upload (cf.
https://salsa.debian.org/kernel-team/linux/-/merge_requests/506).

> Bisection would be a new experience for me, even compiling the kernel seem
> like ages ago ... (using Debian since 0.93R6).

Would the following help?
https://wiki.debian.org/DebianKernel/GitBisect
Do you need any more specifc help to get it rolling?

Regards,
Salvatore

Arne Nordmark

unread,
Jul 22, 2022, 4:30:03 AM7/22/22
to
Den 2022-07-15 kl. 21:58, skrev Salvatore Bonaccorso:
> I would be interested to either pinpoint the regressing commit
> upstream beween 5.10.120 and 5.10.127 or conversely the fixing commit
> beween 5.10.127 upstream and 5.10.130 where you are not able anymore
> to reproduce the error. What I can say, I have already imported
> 5.10.130 for furture upload (cf.
> https://salsa.debian.org/kernel-team/linux/-/merge_requests/506).

Bisection for the regression proved too hard.

Bisection for the fix went better, I can get a crash with 5.10.128-00010
but not yet with 5.10.128-00011. This indicates that the fixing commit
was probably:

commit 6a0b9512a6aa7b7835d8138f5ffdcb4789c093d4
Author: Chuck Lever <chuck...@oracle.com>
Date: Thu Jun 30 16:48:18 2022 -0400

SUNRPC: Fix READ_PLUS crasher

which indeed seems to touch code involved in NFS service.

Consequently, the breaking commit was probably:

6c254bf3b637 ("SUNRPC: Fix the calculation of xdr->end in
xdr_get_next_encode_buffer()")

>
>> Bisection would be a new experience for me, even compiling the kernel seem
>> like ages ago ... (using Debian since 0.93R6).
>
> Would the following help?
> https://wiki.debian.org/DebianKernel/GitBisect
> Do you need any more specifc help to get it rolling?

That was indeed helpful.

>
> Regards,
> Salvatore

Thanks
Arne

Salvatore Bonaccorso

unread,
Aug 13, 2022, 8:30:03 AM8/13/22
to
Hi Arne,

On Fri, Jul 22, 2022 at 10:18:56AM +0200, Arne Nordmark wrote:
> Den 2022-07-15 kl. 21:58, skrev Salvatore Bonaccorso:
> > I would be interested to either pinpoint the regressing commit
> > upstream beween 5.10.120 and 5.10.127 or conversely the fixing commit
> > beween 5.10.127 upstream and 5.10.130 where you are not able anymore
> > to reproduce the error. What I can say, I have already imported
> > 5.10.130 for furture upload (cf.
> > https://salsa.debian.org/kernel-team/linux/-/merge_requests/506).
>
> Bisection for the regression proved too hard.
>
> Bisection for the fix went better, I can get a crash with 5.10.128-00010 but
> not yet with 5.10.128-00011. This indicates that the fixing commit was
> probably:
>
> commit 6a0b9512a6aa7b7835d8138f5ffdcb4789c093d4
> Author: Chuck Lever <chuck...@oracle.com>
> Date: Thu Jun 30 16:48:18 2022 -0400
>
> SUNRPC: Fix READ_PLUS crasher
>
> which indeed seems to touch code involved in NFS service.
>
> Consequently, the breaking commit was probably:
>
> 6c254bf3b637 ("SUNRPC: Fix the calculation of xdr->end in
> xdr_get_next_encode_buffer()")

Thank you and apologies for the delay! The next upload for
bullseye(-security) will contain that fix and will close the bug with
that upload.

Thanks a lot for your investigtive work and bisection to the fix!

Regards,
Salvatore
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