It's stuck in this boot-broken region. And git bisect degrades to
linear behavior on skipped commits (why?).
If only kernel would have proper presubmit testing to avoid at least
boot breakages... :)
[ 6.784292][ T24] kasan: GPF could be caused by NULL-ptr deref or
user memory access
[ 6.787429][ T24] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 6.789312][ T24] CPU: 1 PID: 24 Comm: kworker/u4:2 Not tainted
5.3.0-rc1-syzkaller #0
[ 6.791623][ T24] Hardware name: Google Google Compute
Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 6.791623][ T24] Workqueue: events_unbound async_run_entry_fn
[ 6.795328][ T24] RIP: 0010:dma_direct_max_mapping_size+0x5d/0x128
[ 6.795328][ T24] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85
c2 00 00 00 4c 8b a3 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89
e2 48 c1 ea 03 <80> 3c 02 00 0f 85 aa 00 00 00 48 8d bb 48 03 00 00 4d
8b 2c 24 48
[ 6.795328][ T24] RSP: 0000:ffff8880a9adf728 EFLAGS: 00010246
[ 6.806015][ T24] RAX: dffffc0000000000 RBX: ffff88821962b300
RCX: ffffffff8716d938
[ 6.806015][ T24] RDX: 0000000000000000 RSI: 0000000000000040
RDI: ffff88821962b638
[ 6.806015][ T24] RBP: ffff8880a9adf740 R08: ffffed101443d28d
R09: ffffed101443d28d
[ 6.806015][ T24] R10: ffffed101443d28c R11: ffff8880a21e9467
R12: 0000000000000000
[ 6.806015][ T24] R13: ffff88821962b300 R14: ffff8880a28a6a70
R15: 0000000000000200
[ 6.818295][ T24] FS: 0000000000000000(0000)
GS:ffff8880ae900000(0000) knlGS:0000000000000000
[ 6.818446][ T24] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.818446][ T24] CR2: 0000000000000000 CR3: 0000000008a6d000
CR4: 00000000001406e0
[ 6.818446][ T24] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 6.818446][ T24] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 6.829410][ T24] Call Trace:
[ 6.829410][ T24] dma_max_mapping_size+0xa2/0xc0
[ 6.831705][ T24] __scsi_init_queue+0x197/0x4f0
[ 6.831705][ T24] scsi_mq_alloc_queue+0xb7/0x150
[ 6.831705][ T24] scsi_alloc_sdev+0x7b7/0xb80
[ 6.831705][ T24] scsi_probe_and_add_lun+0x86a/0x37c0
[ 6.831705][ T24] ? __kasan_check_read+0x11/0x20
[ 6.839613][ T24] ? scsi_alloc_sdev+0xb80/0xb80
[ 6.839613][ T24] ? mark_lock+0xc3/0x1190
[ 6.839613][ T24] ? mark_held_locks+0xb8/0x130
[ 6.839613][ T24] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 6.839613][ T24] ? __pm_runtime_resume+0xb4/0x110
[ 6.839613][ T24] ? lockdep_hardirqs_on+0x424/0x5c0
[ 6.839613][ T24] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 6.839613][ T24] ? trace_hardirqs_on+0x28/0x1a0
[ 6.851380][ T1] slram: not enough parameters.
[ 6.839613][ T24] ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[ 6.839613][ T24] ? __pm_runtime_resume+0xb4/0x110
[ 6.839613][ T24] __scsi_scan_target+0x1fd/0xc90
[ 6.839613][ T24] ? scsi_add_device+0x30/0x30
[ 6.839613][ T24] ? mark_held_locks+0xb8/0x130
[ 6.839613][ T24] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 6.839613][ T24] ? __pm_runtime_resume+0xb4/0x110
[ 6.839613][ T24] ? lockdep_hardirqs_on+0x424/0x5c0
[ 6.839613][ T24] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 6.839613][ T24] ? trace_hardirqs_on+0x28/0x1a0
[ 6.839613][ T24] scsi_scan_channel.part.8+0xd6/0x140
[ 6.857364][ T1] ftl_cs: FTL header not found.
[ 6.854615][ T24] scsi_scan_host_selected+0x20c/0x300
[ 6.865470][ T1] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
[ 6.854615][ T24] ? scsi_scan_host+0x3c0/0x3c0
[ 6.854615][ T24] do_scsi_scan_host+0x1b3/0x250
[ 6.854615][ T24] ? lock_downgrade+0x900/0x900
[ 6.854615][ T24] ? scsi_scan_host+0x3c0/0x3c0
[ 6.854615][ T24] do_scan_async+0x3c/0x450
[ 6.854615][ T24] ? scsi_scan_host+0x3c0/0x3c0
[ 6.854615][ T24] async_run_entry_fn+0xf9/0x4b0
[ 6.854615][ T24] process_one_work+0x856/0x1630
[ 6.854615][ T24] ? pwq_dec_nr_in_flight+0x2c0/0x2c0
[ 6.854615][ T24] ? lock_acquire+0x194/0x410
[ 6.854615][ T24] worker_thread+0x85/0xb60
[ 6.854615][ T24] ? __kthread_parkme+0x47/0x1a0
[ 6.854615][ T24] kthread+0x331/0x3f0
[ 6.854615][ T24] ? process_one_work+0x1630/0x1630
[ 6.854615][ T24] ? kthread_cancel_delayed_work_sync+0x10/0x10
[ 6.854615][ T24] ret_from_fork+0x24/0x30
[ 6.854615][ T24] Modules linked in:
[ 6.907103][ T24] ---[ end trace 14068796cd600dc6 ]---
[ 6.908603][ T24] RIP: 0010:dma_direct_max_mapping_size+0x5d/0x128
[ 6.909683][ T1] eql: Equalizer2002: Simon Janes (
si...@ncm.com)
and David S. Miller (
da...@redhat.com)
[ 6.910361][ T24] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85
c2 00 00 00 4c 8b a3 38 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89
e2 48 c1 ea 03 <80> 3c 02 00 0f 85 aa 00 00 00 48 8d bb 48 03 00 00 4d
8b 2c 24 48
[ 6.918535][ T24] RSP: 0000:ffff8880a9adf728 EFLAGS: 00010246
[ 6.919167][ T1] MACsec IEEE 802.1AE
[ 6.920089][ T24] RAX: dffffc0000000000 RBX: ffff88821962b300
RCX: ffffffff8716d938
[ 6.921513][ T1] tun: Universal TUN/TAP device driver, 1.6
[ 6.923553][ T24] RDX: 0000000000000000 RSI: 0000000000000040
RDI: ffff88821962b638
[ 6.932178][ T24] RBP: ffff8880a9adf740 R08: ffffed101443d28d
R09: ffffed101443d28d
[ 6.946172][ T24] R10: ffffed101443d28c R11: ffff8880a21e9467
R12: 0000000000000000
[ 6.952330][ T24] R13: ffff88821962b300 R14: ffff8880a28a6a70
R15: 0000000000000200
[ 6.956636][ T24] FS: 0000000000000000(0000)
GS:ffff8880ae900000(0000) knlGS:0000000000000000
[ 6.964469][ T24] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.968832][ T24] CR2: 0000000000000000 CR3: 0000000008a6d000
CR4: 00000000001406e0
[ 6.971517][ T24] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 6.977961][ T24] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 6.983019][ T24] Kernel panic - not syncing: Fatal exception
[ 6.983346][ T1] vcan: Virtual CAN interface driver
[ 6.987331][ T24] Kernel Offset: disabled
[ 6.988609][ T24] Rebooting in 86400 seconds..