Hello,
got this panic today booting a test machine with kernel from 09/09/2019,
r352054:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer = 0x20:0xffffffff80541088
stack pointer = 0x28:0xfffffe0000578420
frame pointer = 0x28:0xfffffe0000578470
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 593 (limits)
trap number = 9
panic: general protection fault
cpuid = 0
time = 1568392101
KDB: stack backtrace:
#0 0xffffffff8061eec7 at kdb_backtrace+0x67
#1 0xffffffff805d323d at vpanic+0x19d
#2 0xffffffff805d3093 at panic+0x43
#3 0xffffffff80941d2c at trap_fatal+0x39c
#4 0xffffffff8094113c at trap+0x6c
#5 0xffffffff8091b4ac at calltrap+0x8
#6 0xffffffff805421c2 at null_lookup+0x162
#7 0xffffffff809c40c0 at VOP_LOOKUP_APV+0x50
#8 0xffffffff806948f1 at lookup+0x6d1
#9 0xffffffff80693dc7 at namei+0x437
#10 0xffffffff806aaad2 at kern_statat+0x72
#11 0xffffffff806ab2cf at sys_fstatat+0x2f
#12 0xffffffff809428e4 at amd64_syscall+0x364
#13 0xffffffff8091bdd0 at fast_syscall_common+0x101
Uptime: 26s
#4 0xffffffff80941d2c in trap_fatal (frame=<value optimized out>,
eva=<value optimized out>)
at
/usr/local/share/deploy-tools/RELENG_12/src/sys/amd64/amd64/trap.c:943
#5 0xffffffff8094113c in trap (frame=0xfffffe0000578360) at
RELENG_12/src/sys/amd64/include/counter.h:87
#6 0xffffffff8091b4ac in calltrap () at
/usr/local/share/deploy-tools/RELENG_12/src/sys/amd64/amd64/exception.S:289
#7 0xffffffff80541088 in null_nodeget (mp=0xfffff8000524d000,
lowervp=0xfffff8000535b000, vpp=0xfffffe00005784a8)
at
/usr/local/share/deploy-tools/RELENG_12/src/sys/fs/nullfs/null_subr.c:117
#8 0xffffffff805421c2 in null_lookup (ap=0xfffffe0000578568)
at
/usr/local/share/deploy-tools/RELENG_12/src/sys/fs/nullfs/null_vnops.c:429
#9 0xffffffff809c40c0 in VOP_LOOKUP_APV (vop=0xffffffff80c81d98,
a=0xfffffe0000578568) at vnode_if.c:126
#10 0xffffffff806948f1 in lookup (ndp=0xfffffe0000578768) at vnode_if.h:54
#11 0xffffffff80693dc7 in namei (ndp=0xfffffe0000578768) at
/usr/local/share/deploy-tools/RELENG_12/src/sys/kern/vfs_lookup.c:445
#12 0xffffffff806aaad2 in kern_statat (td=0xfffff800052ad5e0,
flag=<value optimized out>, fd=<value optimized out>,
path=0x8002600b0 <Address 0x8002600b0 out of bounds>,
pathseg=UIO_USERSPACE, sbp=0xfffffe0000578888, hook=0)
at
/usr/local/share/deploy-tools/RELENG_12/src/sys/kern/vfs_syscalls.c:2300
#13 0xffffffff806ab2cf in sys_fstatat (td=<value optimized out>,
uap=0xfffff800052ad9a0)
at
/usr/local/share/deploy-tools/RELENG_12/src/sys/kern/vfs_syscalls.c:2277
#14 0xffffffff809428e4 in amd64_syscall (td=0xfffff800052ad5e0, traced=0)
at RELENG_12/src/sys/amd64/amd64/../../kern/subr_syscall.c:135
This occured only once and after the reboot, I found a corrupted file on
my nullfs-mount. It wasn't mutilated, but showed content of another
valid file in the same directory (like 'cat fil1 >> vfile2')
Any ideas if this has been recently addressed since 09/09?
Thanks,
-harry
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