zfs related panic

[Andriy Gapon]

on 12/06/2009 23:54 Kip Macy said the following:
> show sleepchain

I can only do post-mortem using jhb's scripts for kgdb:
(kgdb) sleepchain 2432
 thread 100263 (pid 2432, tcsh) non-lock sleep
lockchain 2432
 thread 100263 (pid 2432, tcsh) inhibited

Not sure if this correct though and what this means.

> show thread 100263

(kgdb) thr 250
[Switching to thread 250 (Thread 100263)]#0  sched_switch (td=0xffffff000cfad720,
newtd=Variable "newtd" is not available.
) at /usr/src/sys/kern/sched_ule.c:1944
1944                    cpuid = PCPU_GET(cpuid);

(kgdb) backtrace
#0  sched_switch (td=0xffffff000cfad720, newtd=Variable "newtd" is not available.
) at /usr/src/sys/kern/sched_ule.c:1944
#1  0xffffffff80302a59 in mi_switch (flags=1, newtd=0x0) at
/usr/src/sys/kern/kern_synch.c:444
#2  0xffffffff8032f645 in sleepq_switch (wchan=Variable "wchan" is not available.
) at /usr/src/sys/kern/subr_sleepqueue.c:497
#3  0xffffffff8032f925 in sleepq_catch_signals (wchan=0xffffff011440e548) at
/usr/src/sys/kern/subr_sleepqueue.c:417
#4  0xffffffff80330219 in sleepq_wait_sig (wchan=Variable "wchan" is not available.
) at /usr/src/sys/kern/subr_sleepqueue.c:594
#5  0xffffffff80302eba in _sleep (ident=0xffffff011440e548,
lock=0xffffff011440e5a0, priority=360, wmesg=0xffffffff80508788 "pause", timo=0)
at /usr/src/sys/kern/kern_synch.c:228
#6  0xffffffff802fc567 in kern_sigsuspend (td=Variable "td" is not available.
) at /usr/src/sys/kern/kern_sig.c:1474
#7  0xffffffff802fc5e9 in sigsuspend (td=0xffffff000cfad720, uap=Variable "uap" is
not available.
) at /usr/src/sys/kern/kern_sig.c:1453
#8  0xffffffff80491d2d in syscall (frame=0xffffff8076db8c80) at
/usr/src/sys/amd64/amd64/trap.c:899
#9  0xffffffff8047d00b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:339
#10 0x000000080092ce3c in ?? ()
Previous frame inner to this frame (corrupt stack?)

-- 
Andriy Gapon