Hello,
syzbot found the following crash on:
HEAD commit: 1c64917f Quickly plug another regression from r353292. Aga..
git tree: freebsd
console output:
https://syzkaller.appspot.com/x/log.txt?x=141274b3600000
dashboard link:
https://syzkaller.appspot.com/bug?extid=f68365b1e06521722984
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by:
syzbot+f68365...@syzkaller.appspotmail.com
login: panic: Assertion in_epoch(net_epoch_preempt) failed at
/syzkaller/managers/main/kernel/sys/net/if.c:3827
cpuid = 0
time = 1570557735
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame
0xfffffe0022bff5b0
vpanic() at vpanic+0x1e0/frame 0xfffffe0022bff610
panic() at panic+0x43/frame 0xfffffe0022bff670
if_setlladdr() at if_setlladdr+0x34c/frame 0xfffffe0022bff6e0
ifhwioctl() at ifhwioctl+0x9e0/frame 0xfffffe0022bff770
ifioctl() at ifioctl+0x4c2/frame 0xfffffe0022bff840
kern_ioctl() at kern_ioctl+0x465/frame 0xfffffe0022bff8b0
sys_ioctl() at sys_ioctl+0x267/frame 0xfffffe0022bff980
amd64_syscall() at amd64_syscall+0x477/frame 0xfffffe0022bffab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0022bffab0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004882ca, rsp =
0x7fffffffe428, rbp = 0x7fffffffe470 ---
KDB: enter: panic
[ thread pid 764 tid 100072 ]
Stopped at kdb_enter+0x6a: movq $0,kdb_why
---
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