Date: Fri, 9 Oct 2015 11:11:24 +0200 (CEST) From: Christian Kratzer <ck-lists@cksoft.de> To: John Baldwin <jhb@freebsd.org> Cc: Rick Macklem <rmacklem@uoguelph.ca>, freebsd-stable@freebsd.org Subject: Re: smbfs crashes since approx. 10.1-RELEASE Message-ID: <alpine.BSF.2.20.1510091107010.71292@noc1.cksoft.de> In-Reply-To: <3563189.eDHDcCgW5L@ralph.baldwin.cx> References: <alpine.BSF.2.20.1510051157450.16263@noc1.cksoft.de> <2148690.gx9M0ZzrG1@ralph.baldwin.cx> <alpine.BSF.2.20.1510070844030.16263@noc1.cksoft.de> <3563189.eDHDcCgW5L@ralph.baldwin.cx>
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Hi John,
the box crashed again running a 10-stable kernel with following patch of yours:
On Wed, 7 Oct 2015, John Baldwin wrote:
> Index: smb_iod.c
> ===================================================================
> --- smb_iod.c (revision 288952)
> +++ smb_iod.c (working copy)
> @@ -624,6 +624,13 @@
> SMB_IOD_EVUNLOCK(iod);
> } else
> free(evp, M_SMBIOD);
> + if (iod->iod_flags & SMBIOD_SHUTDOWN) {
> + if (!STAILQ_EMPTY(&iod->iod_evlist))
> + printf("%s: shutdown with pending events\n",
> + __func__);
> + }
> + return;
> + }
> }
> #if 0
> if (iod->iod_state == SMBIOD_ST_VCACTIVE) {
>
here is what I got on the kvm console:
login: panic: Assertion mtx_unowned(m) failed at
/usr/src/sys/kern/kern_mutex.c:955^M
cpuid = 1^M
KDB: stack backtrace:^M
#0 0xffffffff80975bb0 at kdb_backtrace+0x60^M
#1 0xffffffff8093baa6 at vpanic+0x126^M
#2 0xffffffff8093b979 at kassert_panic+0x139^M
#3 0xffffffff80921c47 at _mtx_destroy+0x77^M
#4 0xffffffff81a1c114 at smb_iod_destroy+0xc4^M
#5 0xffffffff81a12eea at smb_vc_free+0x1a^M
#6 0xffffffff81a13e24 at sdp_trydestroy+0xb4^M
#7 0xffffffff81a1cb36 at smbfs_unmount+0xd6^M
#8 0xffffffff809d9e84 at dounmount+0x524^M
#9 0xffffffff809d9936 at sys_unmount+0x3c6^M
#10 0xffffffff80d42235 at amd64_syscall+0x265^M
#11 0xffffffff80d25cfb at Xfast_syscall+0xfb^M
Uptime: 19h48m28s^M
Dumping 179 out of 999
MB:..9%..18%..27%..36%..45%..54%..63%..72%..81%..98%^M
Dump complete^M
Automatic reboot in 15 seconds - press a key on the console to abort^M
heres the crashinfo:
panic: Assertion mtx_unowned(m) failed at /usr/src/sys/kern/kern_mutex.c:955
GNU gdb 6.1.1 [FreeBSD]
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Type "show copying" to see the conditions.
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This GDB was configured as "amd64-marcel-freebsd"...
Unread portion of the kernel message buffer:
panic: Assertion mtx_unowned(m) failed at /usr/src/sys/kern/kern_mutex.c:955
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff80975bb0 at kdb_backtrace+0x60
#1 0xffffffff8093baa6 at vpanic+0x126
#2 0xffffffff8093b979 at kassert_panic+0x139
#3 0xffffffff80921c47 at _mtx_destroy+0x77
#4 0xffffffff81a1c114 at smb_iod_destroy+0xc4
#5 0xffffffff81a12eea at smb_vc_free+0x1a
#6 0xffffffff81a13e24 at sdp_trydestroy+0xb4
#7 0xffffffff81a1cb36 at smbfs_unmount+0xd6
#8 0xffffffff809d9e84 at dounmount+0x524
#9 0xffffffff809d9936 at sys_unmount+0x3c6
#10 0xffffffff80d42235 at amd64_syscall+0x265
#11 0xffffffff80d25cfb at Xfast_syscall+0xfb
Uptime: 19h48m28s
Dumping 179 out of 999 MB:..9%..18%..27%..36%..45%..54%..63%..72%..81%..98%
Reading symbols from /boot/kernel/smbfs.ko.symbols...done.
Loaded symbols for /boot/kernel/smbfs.ko.symbols
Reading symbols from /boot/kernel/libiconv.ko.symbols...done.
Loaded symbols for /boot/kernel/libiconv.ko.symbols
Reading symbols from /boot/kernel/libmchain.ko.symbols...done.
Loaded symbols for /boot/kernel/libmchain.ko.symbols
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
219 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) #0 doadump (textdump=<value optimized out>) at pcpu.h:219
#1 0xffffffff8093b5f2 in kern_reboot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:451
#2 0xffffffff8093bae5 in vpanic (fmt=<value optimized out>,
ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:758
#3 0xffffffff8093b979 in kassert_panic (fmt=<value optimized out>)
at /usr/src/sys/kern/kern_shutdown.c:646
#4 0xffffffff80921c47 in _mtx_destroy (c=0xfffff80009284690)
at /usr/src/sys/kern/kern_mutex.c:955
#5 0xffffffff81a1c114 in smb_iod_destroy (iod=0xfffff80009284600)
at /usr/src/sys/modules/smbfs/../../netsmb/smb_iod.c:706
#6 0xffffffff81a12eea in smb_vc_free (cp=0xfffff8003a602a00)
at /usr/src/sys/modules/smbfs/../../netsmb/smb_conn.c:499
#7 0xffffffff81a13e24 in sdp_trydestroy (sdp=0xfffff8000a7cbc80)
at /usr/src/sys/modules/smbfs/../../netsmb/smb_dev.c:166
#8 0xffffffff81a1cb36 in smbfs_unmount (mp=0xfffff80039f88330,
mntflags=<value optimized out>)
at /usr/src/sys/modules/smbfs/../../fs/smbfs/smbfs_vfsops.c:297
#9 0xffffffff809d9e84 in dounmount (mp=0xfffff80039f88330, flags=134217728,
td=0xfffff8000f2b0000) at /usr/src/sys/kern/vfs_mount.c:1313
#10 0xffffffff809d9936 in sys_unmount (td=0xfffff8000f2b0000,
uap=0xfffffe003d67fb80) at /usr/src/sys/kern/vfs_mount.c:1205
#11 0xffffffff80d42235 in amd64_syscall (td=0xfffff8000f2b0000, traced=0)
at subr_syscall.c:134
#12 0xffffffff80d25cfb in Xfast_syscall ()
at /usr/src/sys/amd64/amd64/exception.S:396
#13 0x000000080089190a in ?? ()
Previous frame inner to this frame (corrupt stack?)
Current language: auto; currently minimal
(kgdb)
I have kgdb710 from ports setup in case you need me to check something.
Greetings
Christian
--
Christian Kratzer CK Software GmbH
Email: ck@cksoft.de Wildberger Weg 24/2
Phone: +49 7032 893 997 - 0 D-71126 Gaeufelden
Fax: +49 7032 893 997 - 9 HRB 245288, Amtsgericht Stuttgart
Mobile: +49 171 1947 843 Geschaeftsfuehrer: Christian Kratzer
Web: http://www.cksoft.de/
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