Date: Sat, 24 May 2008 20:50:03 GMT From: Dmitry Demidov <dima_bsd@inbox.lv> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/121962: Kernel panics with device polling and snd_emu10k1.ko enabled and network load Message-ID: <200805242050.m4OKo3vp032162@freefall.freebsd.org>
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The following reply was made to PR kern/121962; it has been noted by GNATS.
From: Dmitry Demidov <dima_bsd@inbox.lv>
To: volker@vwsoft.com
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: kern/121962: Kernel panics with device polling and snd_emu10k1.ko enabled and network load
Date: Sat, 24 May 2008 22:42:40 +0300
>Dmitry,
>
>can you please send us a backtrace? Using the kgdb, fire a 'bt' command
>and send us the output.
>
>Thanks!
Here it is.
===
Script started on Sat May 24 22:17:34 2008
[root@hius /usr/obj/usr/src/sys/GENERIC_COPY]# uname -a
FreeBSD hius.local.home 7.0-RELEASE-p1 FreeBSD 7.0-RELEASE-p1 #0: Sat May 24
21:41:59 EEST 2008 root@hius.local.home:/usr/obj/usr/src/sys/GENERIC_COPY
i386
[root@hius /usr/obj/usr/src/sys/GENERIC_COPY]# kgdb
kernel.debug /var/crash/vmcore.9
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
Unread portion of the kernel message buffer:
panic: sbflush_internal: cc 4294967230 || mb 0 || mbcnt 0
cpuid = 0
Uptime: 3m30s
Physical memory: 1007 MB
Dumping 62 MB: 47 31 15
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:241
241 dumptid = curthread->td_tid;
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:241
#1 0xc0852d7f in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc08531ad in panic (fmt=Could not find the frame base for "panic".
) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc08bce07 in sbflush_internal (sb=0xc48c8cb0)
at /usr/src/sys/kern/uipc_sockbuf.c:815
#4 0xc08bce1a in sbflush_locked (sb=0xc48c8cb0)
at /usr/src/sys/kern/uipc_sockbuf.c:824
#5 0xc08bcebb in sbflush (sb=0xc48c8cb0)
at /usr/src/sys/kern/uipc_sockbuf.c:832
#6 0xc0a1d011 in tcp_disconnect (tp=0xc4bddcb0)
at /usr/src/sys/netinet/tcp_usrreq.c:1491
#7 0xc0a1a902 in tcp_usr_disconnect (so=0xc48c8c60)
at /usr/src/sys/netinet/tcp_usrreq.c:578
#8 0xc08bf5d1 in sodisconnect (so=0xc48c8c60)
at /usr/src/sys/kern/uipc_socket.c:787
#9 0xc08bec08 in soclose (so=0xc48c8c60)
at /usr/src/sys/kern/uipc_socket.c:642
#10 0xc08a083b in soo_close (fp=0xc481e360, td=0xc4977210)
at /usr/src/sys/kern/sys_socket.c:274
#11 0xc0816377 in fo_close (fp=0xc481e360, td=0xc4977210) at file.h:297
#12 0xc081629c in fdrop_locked (fp=0xc481e360, td=0xc4977210)
at /usr/src/sys/kern/kern_descrip.c:2175
#13 0xc0816153 in fdrop (fp=0xc481e360, td=0xc4977210)
at /usr/src/sys/kern/kern_descrip.c:2140
#14 0xc08158e2 in closef (fp=0xc481e360, td=0xc4977210)
at /usr/src/sys/kern/kern_descrip.c:1958
#15 0xc0812d15 in kern_close (td=0xc4977210, fd=8)
at /usr/src/sys/kern/kern_descrip.c:1054
#16 0xc0812b82 in close (td=0xc4977210, uap=0xe6cb1ccc)
at /usr/src/sys/kern/kern_descrip.c:1006
#17 0xc0c4b3d4 in syscall (frame=0xe6cb1d38)
at /usr/src/sys/i386/i386/trap.c:1035
#18 0xc0c29340 in Xint0x80_syscall ()
at /usr/src/sys/i386/i386/exception.s:196
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)
(kgdb) quit
[root@hius /usr/obj/usr/src/sys/GENERIC_COPY]# exit
exit
Script done on Sat May 24 22:19:18 2008
===
#cat /var/crash/info.9
Dump header from device /dev/ad0s2b
Architecture: i386
Architecture Version: 2
Dump Length: 65564672B (62 MB)
Blocksize: 512
Dumptime: Sat May 24 22:12:53 2008
Hostname: hius.local.home
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 7.0-RELEASE-p1 #0: Sat May 24 21:41:59 EEST 2008
terminus@hius.local.home:/usr/obj/usr/src/sys/GENERIC_COPY
Panic String: sbflush_internal: cc 4294967230 || mb 0 || mbcnt 0
Dump Parity: 4246574967
Bounds: 9
Dump Status: good
===
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