[Bug 210731] kernel panic ZFS related

Fri Jul 1 00:36:30 UTC 2016

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210731

            Bug ID: 210731
           Summary: kernel panic ZFS related
           Product: Base System
           Version: 10.3-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: peixoto.cassiano at gmail.com

Hi guys,

My server is crashing either after some days our hours up, here is debugging.
Do you you have any idea what's going on? I'm running 10.3-STABLE, but before
it was running with 10.2-STABLE with same issue. Thank you.

# kgdb kernel.debug /var/crash/vmcore.0
GNU gdb 6.1.1 [FreeBSD]
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This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
cpuid = 7; apic id = 08
fault virtual address   = 0x10
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff818f198c
stack pointer           = 0x28:0xfffffe0237ac2970
frame pointer           = 0x28:0xfffffe0237ac29c0
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         = 6 (trim zroot)
trap number             = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff808df650 at kdb_backtrace+0x60
#1 0xffffffff808a5d56 at vpanic+0x126
#2 0xffffffff808a5c23 at panic+0x43
#3 0xffffffff80cfd9ab at trap_fatal+0x36b
#4 0xffffffff80cfdbec at trap_pfault+0x22c
#5 0xffffffff80cfd32a at trap+0x47a
#6 0xffffffff80ce45bc at calltrap+0x8
#7 0xffffffff818f1dd8 at avl_remove+0x1c8
#8 0xffffffff819c6395 at trim_map_commit+0x235
#9 0xffffffff819c6226 at trim_map_commit+0xc6
#10 0xffffffff819c5fa2 at trim_thread+0xf2
#11 0xffffffff80876788 at fork_exit+0xc8
#12 0xffffffff80ce4afe at fork_trampoline+0xe
Uptime: 9h32m0s
Dumping 705 out of 8152 MB: (CTRL-C to abort)
..3%..12%..21%..32%..41%..53%..62%..71%..82%..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
Reading symbols from /boot/kernel/ng_UI.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_UI.ko.symbols
Reading symbols from /boot/kernel/netgraph.ko.symbols...done.
Loaded symbols for /boot/kernel/netgraph.ko.symbols
Reading symbols from /boot/kernel/ng_async.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_async.ko.symbols
Reading symbols from /boot/kernel/ng_bpf.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_bpf.ko.symbols
Reading symbols from /boot/kernel/ng_cisco.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_cisco.ko.symbols
Reading symbols from /boot/kernel/ng_echo.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_echo.ko.symbols
Reading symbols from /boot/kernel/ng_ether.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ether.ko.symbols
Reading symbols from /boot/kernel/ng_frame_relay.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_frame_relay.ko.symbols
Reading symbols from /boot/kernel/ng_hole.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_hole.ko.symbols
Reading symbols from /boot/kernel/ng_iface.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_iface.ko.symbols
Reading symbols from /boot/kernel/ng_ksocket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ksocket.ko.symbols
Reading symbols from /boot/kernel/ng_l2tp.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_l2tp.ko.symbols
Reading symbols from /boot/kernel/ng_lmi.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_lmi.ko.symbols
Reading symbols from /boot/kernel/ng_mppc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_mppc.ko.symbols
Reading symbols from /boot/kernel/rc4.ko.symbols...done.
Loaded symbols for /boot/kernel/rc4.ko.symbols
Reading symbols from /boot/kernel/ng_netflow.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_netflow.ko.symbols
Reading symbols from /boot/kernel/ng_ppp.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ppp.ko.symbols
Reading symbols from /boot/kernel/ng_pppoe.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pppoe.ko.symbols
Reading symbols from /boot/kernel/ng_pptpgre.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_pptpgre.ko.symbols
Reading symbols from /boot/kernel/ng_rfc1490.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_rfc1490.ko.symbols
Reading symbols from /boot/kernel/ng_socket.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_socket.ko.symbols
Reading symbols from /boot/kernel/ng_tee.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tee.ko.symbols
Reading symbols from /boot/kernel/ng_tty.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tty.ko.symbols
Reading symbols from /boot/kernel/ng_vjc.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_vjc.ko.symbols
Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
Loaded symbols for /boot/kernel/coretemp.ko.symbols
Reading symbols from /boot/modules/plcm.ko...done.
Loaded symbols for /boot/modules/plcm.ko
Reading symbols from /boot/kernel/ng_tcpmss.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_tcpmss.ko.symbols
Reading symbols from /boot/kernel/ng_nat.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_nat.ko.symbols
Reading symbols from /boot/kernel/ng_car.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_car.ko.symbols
#0  doadump (textdump=<value optimized out>) at pcpu.h:219
219     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) list *0xffffffff818f198c
0xffffffff818f198c is in avl_rotation
(/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/common/avl/avl.c:316).
311             avl_node_t *cright;
312             avl_node_t *gchild;
313             avl_node_t *gright;
314             avl_node_t *gleft;
315             int which_child = AVL_XCHILD(node);
316             int child_bal = AVL_XBALANCE(child);
317     
318             /* BEGIN CSTYLED */
319             /*
320              * case 1 : node is overly left heavy, the left child is
balanced or
Current language:  auto; currently minimal
(kgdb) bt
#0  doadump (textdump=<value optimized out>) at pcpu.h:219
#1  0xffffffff808a5a2c in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:486
#2  0xffffffff808a5d95 in vpanic (fmt=<value optimized out>, ap=<value
optimized out>) at /usr/src/sys/kern/kern_shutdown.c:889
#3  0xffffffff808a5c23 in panic (fmt=0x0) at
/usr/src/sys/kern/kern_shutdown.c:818
#4  0xffffffff80cfd9ab in trap_fatal (frame=<value optimized out>, eva=<value
optimized out>) at /usr/src/sys/amd64/amd64/trap.c:858
#5  0xffffffff80cfdbec in trap_pfault (frame=0xfffffe0237ac28c0,
usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:681
#6  0xffffffff80cfd32a in trap (frame=0xfffffe0237ac28c0) at
/usr/src/sys/amd64/amd64/trap.c:447
#7  0xffffffff80ce45bc in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:238
#8  0xffffffff818f198c in avl_rotation (tree=0xfffff800112f6020,
node=0xfffff8014b6c0880, balance=<value optimized out>)
    at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/common/avl/avl.c:315
#9  0xffffffff818f1dd8 in avl_remove (tree=0xfffff800112f6020, data=<value
optimized out>) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/common/avl/avl.c:818
#10 0xffffffff819c6395 in trim_map_commit (spa=0xfffff8000ebfa000,
zio=0xfffff800110b93b8, vd=0xfffff800110bf000)
    at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c:472
#11 0xffffffff819c6226 in trim_map_commit (spa=0xfffff8000ebfa000,
zio=0xfffff800110b93b8, vd=0xfffff8000eaf8800)
    at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c:539
#12 0xffffffff819c5fa2 in trim_thread (arg=0xfffff8000ebfa000) at
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c:586
#13 0xffffffff80876788 in fork_exit (callout=0xffffffff819c5eb0 <trim_thread>,
arg=0xfffff8000ebfa000, frame=0xfffffe0237ac2c00) at
/usr/src/sys/kern/kern_fork.c:1027
#14 0xffffffff80ce4afe in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:613
#15 0x0000000000000000 in ?? ()

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