ZFS Kernel Panic on 10.0-RELEASE
Steven Hartland
killing at multiplay.co.uk
Mon Jun 2 20:06:27 UTC 2014
Could you check what vd is at frame 7?
----- Original Message -----
From: "Mike Carlson" <mike at bayphoto.com>
On 6/2/2014 10:35 AM, Steven Hartland wrote:
> ----- Original Message ----- From: "Mike Carlson" <mike at bayphoto.com>
>> I have a crash dump, its 3.2GB in size.
>>
>> How can I get this to the right people? I can put it up on S3, but
>> I'd prefer to limit its access since it may contain sensitive
>> information (we dont have local accounts aside from root, but better
>> to be safe)
>
> For starters can you put the top contents of core.X.txt somewhere.
>
> If there's sensitive info in there just the top kgdb section with
> the backtrace will be good initially.
>
> Regards
> Steve
>
>
I don't have a core.0.txt, I only have:
~/p/z/dump> ls -al
total 347690
drwxr-xr-x 3 mikec wheel 8 Jun 2 03:25 .
drwxr-xr-x 4 mikec wheel 5 Jun 2 10:44 ..
drwxrwxr-x 2 mikec operator 2 Jun 2 03:07 .snap
-rw-r--r-- 1 mikec wheel 2 Jun 2 03:24 bounds
-rw------- 1 mikec wheel 446 Jun 2 03:24 info.0
lrwxr-xr-x 1 mikec wheel 6 Jun 2 03:25 info.last ->
info.0
-rw------- 1 mikec wheel 3469885440 Jun 2 03:25 vmcore.0
lrwxr-xr-x 1 mikec wheel 8 Jun 2 03:25 vmcore.last
-> vmcore.0
But, here is the kgdb output (with backtrace):
~/p/z/dump> cat ../kgdb_backtrace.txt
<118>root@:/ # zfs set canmount=on zroot/data/working
<118>root@:/ # zfs mount zroot/data/working
Fatal trap 12: page fault while in kernel mode
cpuid = 14; apic id = 22
fault virtual address = 0x4a0
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff8185a39f
stack pointer = 0x28:0xfffffe1834608570
frame pointer = 0x28:0xfffffe18346085b0
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 = 2 (txg_thread_enter)
trap number = 12
panic: page fault
cpuid = 14
KDB: stack backtrace:
#0 0xffffffff808e7ee0 at kdb_backtrace+0x60
#1 0xffffffff808af9c5 at panic+0x155
#2 0xffffffff80c8e7b2 at trap_fatal+0x3a2
#3 0xffffffff80c8ea89 at trap_pfault+0x2c9
#4 0xffffffff80c8e216 at trap+0x5e6
#5 0xffffffff80c754b2 at calltrap+0x8
#6 0xffffffff8182eb5a at dsl_dataset_block_kill+0x3a
#7 0xffffffff8182b967 at dnode_sync+0x237
#8 0xffffffff81823fcb at dmu_objset_sync_dnodes+0x2b
#9 0xffffffff81823e4d at dmu_objset_sync+0x1ed
#10 0xffffffff8183829a at dsl_pool_sync+0xca
#11 0xffffffff81853a4e at spa_sync+0x52e
#12 0xffffffff8185c925 at txg_sync_thread+0x375
#13 0xffffffff80881a9a at fork_exit+0x9a
#14 0xffffffff80c759ee at fork_trampoline+0xe
Uptime: 26m15s
Dumping 3309 out of 98234
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Reading symbols from /boot/kernel/zfs.ko.symbols...done.
Loaded symbols for /boot/kernel/zfs.ko.symbols
Reading symbols from /boot/kernel/opensolaris.ko.symbols...done.
Loaded symbols for /boot/kernel/opensolaris.ko.symbols
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
219 __asm("movq %%gs:%1,%0" : "=r" (td)
(kgdb) backtrace
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
#1 0xffffffff808af640 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:447
#2 0xffffffff808afa04 in panic (fmt=<value optimized out>) at
/usr/src/sys/kern/kern_shutdown.c:754
#3 0xffffffff80c8e7b2 in trap_fatal (frame=<value optimized out>,
eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:882
#4 0xffffffff80c8ea89 in trap_pfault (frame=0xfffffe18346084c0,
usermode=0) at /usr/src/sys/amd64/amd64/trap.c:699
#5 0xffffffff80c8e216 in trap (frame=0xfffffe18346084c0) at
/usr/src/sys/amd64/amd64/trap.c:463
#6 0xffffffff80c754b2 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:232
#7 0xffffffff8185a39f in bp_get_dsize_sync (spa=0xfffff80041835000,
bp=0xfffffe001b8a1780)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c:1635
#8 0xffffffff8182eb5a in dsl_dataset_block_kill
(ds=0xfffff800410fec00, bp=0xfffffe001b8a1780,
tx=0xfffff8004faa0600, async=0)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c:129
#9 0xffffffff8182b967 in dnode_sync (dn=0xfffff8004fe626c0,
tx=0xfffff8004faa0600) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dnode_sync.c:128
#10 0xffffffff81823fcb in dmu_objset_sync_dnodes
(list=0xfffff80041956b10, newlist=<value optimized out>, tx=<value
optimized out>)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c:945
#11 0xffffffff81823e4d in dmu_objset_sync (os=0xfffff80041956800,
pio=0xfffff800418c43b0, tx=0xfffff8004faa0600)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c:1062
#12 0xffffffff8183829a in dsl_pool_sync (dp=0xfffff8004183c000,
txg=<value optimized out>)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c:413
#13 0xffffffff81853a4e in spa_sync (spa=0xfffff80041835000,
txg=3373534) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c:6410
#14 0xffffffff8185c925 in txg_sync_thread (arg=0xfffff8004183c000)
at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c:515
#15 0xffffffff80881a9a in fork_exit (callout=0xffffffff8185c5b0
<txg_sync_thread>, arg=0xfffff8004183c000, frame=0xfffffe1834608ac0)
at /usr/src/sys/kern/kern_fork.c:995
#16 0xffffffff80c759ee in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:606
#17 0x0000000000000000 in ?? ()
Current language: auto; currently minimal
If anyone wants to help out and check out the vmcore file, email me off
the list and I'll provide a S3 url of the tar'd + xz file.
Thanks,
Mike C
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