kern/186652: Crash during umount -a -t smbfs

[Martin Sugioarto]

>Number:         186652
>Category:       kern
>Synopsis:       Crash during umount -a -t smbfs
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 11 14:40:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Martin Sugioarto
>Release:        10.0-RELEASE
>Organization:
>Environment:
FreeBSD 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
smbfs have been not responsive for all mounted shares. I tried to remount them, but the kernel crashed shortly after executing umount -a -t smbfs.

Here is the stack trace:

#0  doadump (textdump=<value optimized out>) at pcpu.h:219
#1  0xffffffff808af530 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:447
#2  0xffffffff808af8f4 in panic (fmt=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:754
#3  0xffffffff80c8e692 in trap_fatal (frame=<value optimized out>, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:882
#4  0xffffffff80c8e969 in trap_pfault (frame=0xfffffe02298e5940, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:699
#5  0xffffffff80c8e0f6 in trap (frame=0xfffffe02298e5940) at /usr/src/sys/amd64/amd64/trap.c:463
#6  0xffffffff80c75392 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:232
#7  0xffffffff808f81ec in turnstile_broadcast (ts=0x0, queue=0) at /usr/src/sys/kern/subr_turnstile.c:838
#8  0xffffffff8089c860 in __mtx_unlock_sleep (c=0xfffff80207b37d08, opts=<value optimized out>, file=0xffffffff81c41001 " disordered parameters %d:%d\n", line=1) at /usr/src/sys/kern/kern_mutex.c:761
#9  0xffffffff8089c7e9 in __mtx_unlock_flags (c=<value optimized out>, opts=<value optimized out>, file=0xffffffff81c41001 " disordered parameters %d:%d\n", line=1) at /usr/src/sys/kern/kern_mutex.c:254
#10 0xffffffff81c37936 in smb_iod_invrq (iod=<value optimized out>) at /usr/src/sys/modules/smbfs/../../netsmb/smb_iod.c:91
#11 0xffffffff81c36597 in smb_iod_addrq (rqp=0xfffff80207b37c00) at /usr/src/sys/modules/smbfs/../../netsmb/smb_iod.c:116
#12 0xffffffff81c33984 in smb_rq_simple (rqp=0xfffff80207b37c00) at /usr/src/sys/modules/smbfs/../../netsmb/smb_rq.c:168
#13 0xffffffff81c31eac in smb_smb_ssnclose (vcp=<value optimized out>, scred=<value optimized out>) at /usr/src/sys/modules/smbfs/../../netsmb/smb_smb.c:464
#14 0xffffffff81c373df in smb_iod_thread (arg=0xfffff80027aec600) at /usr/src/sys/modules/smbfs/../../netsmb/smb_iod.c:180
#15 0xffffffff8088198a in fork_exit (callout=0xffffffff81c37290 <smb_iod_thread>, arg=0xfffff80027aec600, frame=0xfffffe02298e5c00) at /usr/src/sys/kern/kern_fork.c:995
#16 0xffffffff80c758ce in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:606
#17 0x0000000000000000 in ?? ()


vmcore file is still available, if you need further information.

--
Martin Sugioarto
>How-To-Repeat:

>Fix:


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