page fault in breakpoint (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 23ee83f7c0ae c.7: mention that C11 and C17 have been publi..
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15ef7e38680000
kernel config: https://syzkaller.appspot.com/x/.config?x=fab579639ba4bf0a
dashboard link: https://syzkaller.appspot.com/bug?extid=bb3f121140e832bea5db
compiler: g++ (Debian 12.2.0-14) 12.2.0

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/81063a77eb5b/disk-23ee83f7.raw.xz
netbsd.gdb: https://storage.googleapis.com/syzbot-assets/4a112bb444b0/netbsd-23ee83f7.gdb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bb3f12...@syzkaller.appspotmail.com

[ 499.9698451] fatal page fault in supervisor mode
[ 499.9698451] trap type 6 code 0x2 rip 0xffffffff802006a0 cs 0x8 rflags 0x10002 cr2 0x1 ilevel 0 rsp 0xffffda024875d798
[ 499.9698451] curlwp 0xffffda0013fba4c0 pid 3459.3459 lowest kstack 0xffffda02487562c0
k[e 4r9ne9l.9: 6p98ag4e51 f]a uflatt atl rdaopu, blceo defa=0u[
S4t99op.p96e9d8 4i5n1 ]p idl t 34in5 9.su3p45er9v (issyorz -emxoedceu
ttorr.a1p )t aytpe 13 code 0 rip 0xffffffff8020100b cs 0x8 rflags 0x10086 cr2 0xffffda02486f1fb8 ilevel 0 rsp 0xffffda02486f1fc0
[ 499.9698451] curlwp 0xffffda0013444b80 p i dn 3et4b73s.d:12X3i6nt5r l_ohywpeesrtv _khstypacekr ca0xlflf+0fxfada00: 24 8 6 fa0d2dc0b
% a l , 0 ( %r a x )
?ke
rnel: double fault trap, code=0
Faulted in DDB; continuing...
db{1}> Xintr_hyperv_hypercall() at netbsd:Xintr_hyperv_hypercall+0xa0
--- interrupt ---
?() at ffffda024875da30
[ 499.9698451] panic: stack overflow detected; terminated
[ 499.9698451] cpu0: Begin traceback...
[ 499.9698451] vpanic() at netbsd:vpanic+0x282 sys/kern/subr_prf.c:292
[ 499.9698451] panic() at netbsd:panic+0x9e sys/kern/subr_prf.c:1088
[ 499.9698451] __stack_chk_fail() at netbsd:__stack_chk_fail+0x1c sys/kern/kern_ssp.c:59
[ 499.9698451] db_stack_trace_print() at netbsd:db_stack_trace_print+0x1266
[ 499.9698451] ?() at 0
[ 499.9698451] cpu0: End traceback...
[ 499.9698451] fatal breakpoint trap in supervisor mode
[ 499.9698451] trap type 1 code 0 rip 0xffffffff8023241d cs 0x8 rflags 0x286 cr2 0x1 ilevel 0x8 rsp 0xffffda024875c400
[ 499.9698451] curlwp 0xffffda0013fba4c0 pid 3459.3459 lowest kstack 0xffffda02487562c0
Stopped in pid 3459.3459 (syz-executor.1) at netbsd:breakpoint+0x5: leave


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.