kern/121962: Kernel panics with device polling and
snd_emu10k1.ko enabled and network load
Dmitry Demidov
dima_bsd at inbox.lv
Sat Mar 22 17:30:03 UTC 2008
The following reply was made to PR kern/121962; it has been noted by GNATS.
From: Dmitry Demidov <dima_bsd at inbox.lv>
To: remko at elvandar.org
Cc: freebsd-gnats-submit at freebsd.org
Subject: Re: kern/121962: Kernel panics with device polling and snd_emu10k1.ko enabled and network load
Date: Sat, 22 Mar 2008 18:20:08 +0200
On Saturday 22 March 2008, Remko Lodder wrote:
> On Sat, March 22, 2008 1:14 pm, Dmitry Demidov wrote:
>
>
> Hello,
>
> Thanks for submitting this; can you please review
> http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html
> and return is the information? Make sure you reply-all to this message to
> get it properly recorded for others.
>
> Without that it's rather difficult to see why something crashed and what
> caused it (as you mention three or four different things occur at the same
> time, only one of them probably triggers a panic).
>
> Thanks,
> remko
Thanks for support.
Here are the output of kgdb and some more info.
Can I do more to help you trace this?
---
kgdb kernel.debug /var/crash/vmcore.8
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: 2m40s
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;
---
cat /var/crash/info.8
Dump header from device /dev/ad0s2b
Architecture: i386
Architecture Version: 2
Dump Length: 65060864B (62 MB)
Blocksize: 512
Dumptime: Sat Mar 22 17:15:49 2008
Hostname: hius.local.home
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 7.0-RELEASE #0: Sat Mar 22 16:44:18 EET 2008
root at hius.local.home:/usr/obj/usr/src/sys/GENERIC_COPY
Panic String: sbflush_internal: cc 4294967230 || mb 0 || mbcnt 0
Dump Parity: 3434092906
Bounds: 8
Dump Status: good
---
kldstat
Id Refs Address Size Name
1 10 0xc0400000 b51968 kernel
2 1 0xc0f52000 85a4 snd_emu10k1.ko
3 3 0xc0f5b000 4836c sound.ko
4 1 0xc0fa4000 6722c acpi.ko
5 1 0xc4b2f000 2000 rtc.ko
6 1 0xc4b31000 21000 linux.ko
---
ps auxw
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
root 11 97.8 0.0 0 8 ?? RL 5:13PM 0:42.42 [idle: cpu0]
root 0 0.0 0.0 0 0 ?? WLs 5:13PM 0:00.00 [swapper]
root 1 0.0 0.0 1888 456 ?? ILs 5:13PM 0:00.01 /sbin/init --
root 2 0.0 0.0 0 8 ?? DL 5:13PM 0:00.01 [g_event]
root 3 0.0 0.0 0 8 ?? DL 5:13PM 0:00.02 [g_up]
root 4 0.0 0.0 0 8 ?? DL 5:13PM 0:00.03 [g_down]
root 5 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [kqueue taskq]
root 6 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [acpi_task_0]
root 7 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [acpi_task_1]
root 8 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [acpi_task_2]
root 9 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [thread taskq]
root 10 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [audit]
root 12 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi1: net]
root 13 0.0 0.0 0 8 ?? WL 5:13PM 0:00.16 [swi4: clock
sio]
root 14 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi3: vm]
root 15 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [yarrow]
root 16 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi6: task
queue]
root 17 0.0 0.0 0 8 ?? WL 5:13PM 0:00.01 [swi6: Giant
taskq]
root 18 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi5: +]
root 19 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [xpt_thrd]
root 20 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi2: cambio]
root 21 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq9: acpi0]
root 22 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq16:
fwohci0+]
root 23 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usb0]
root 24 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usbtask-hc]
root 25 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usbtask-dr]
root 26 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq19: uhci1]
root 27 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usb1]
root 28 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq18: uhci2]
root 29 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usb2]
root 30 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq23: ehci0]
root 31 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [usb3]
root 32 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq21: pcm0
em0]
root 33 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq22: fxp0]
root 34 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [fw0_taskq]
root 35 0.0 0.0 0 8 ?? IL 5:13PM 0:00.00 [fw0_probe]
root 36 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [em0 taskq]
root 37 0.0 0.0 0 8 ?? WL 5:13PM 0:00.01 [irq14: ata0]
root 38 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq15: ata1]
root 39 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [fdc0]
root 40 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [swi0: sio]
root 41 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq1: atkbd0]
root 42 0.0 0.0 0 8 ?? WL 5:13PM 0:00.00 [irq7: ppbus0
ppc0]
root 43 0.0 0.0 0 16 ?? DL 5:13PM 0:00.00 [sctp_iterator]
root 44 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [pagedaemon]
root 45 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [vmdaemon]
root 46 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [idlepoll]
root 47 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [pagezero]
root 48 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [bufdaemon]
root 49 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [syncer]
root 50 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [vnlru]
root 51 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [softdepflush]
root 52 0.0 0.0 0 8 ?? DL 5:13PM 0:00.00 [schedcpu]
root 170 0.0 0.1 1324 752 ?? Is 5:13PM 0:00.00 adjkerntz -i
_dhcp 449 0.0 0.1 3072 1256 ?? Is 5:13PM 0:00.00 dhclient: em0
(dhclient)
root 744 0.0 0.1 3208 996 ?? Is 5:13PM
0:00.00 /usr/sbin/moused -p /dev/ums0 -t auto -I /var/run/moused.ums0.pid
root 802 0.0 0.1 1888 528 ?? Is 5:13PM 0:00.00 /sbin/devd
root 873 0.0 0.1 3124 1156 ?? Ss 5:13PM
0:00.01 /usr/sbin/syslogd -s
root 1015 0.0 0.1 3152 1180 ?? Is 5:13PM
0:00.00 /usr/sbin/cron -s
root 1078 0.0 0.1 3124 1036 v0 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv0
root 1079 0.0 0.1 3556 1528 v1 Is 5:13PM 0:00.02 login [pam]
(login)
root 1086 0.0 0.2 4352 2092 v1 S 5:13PM 0:00.02 -bash (bash)
root 1092 0.0 0.1 3224 1020 v1 R+ 5:13PM 0:00.00 ps auxw
root 1080 0.0 0.1 3124 1040 v2 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv2
root 1081 0.0 0.1 3124 1040 v3 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv3
root 1082 0.0 0.1 3124 1040 v4 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv4
root 1083 0.0 0.1 3124 1040 v5 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv5
root 1084 0.0 0.1 3124 1040 v6 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv6
root 1085 0.0 0.1 3124 1040 v7 Is+ 5:13PM
0:00.00 /usr/libexec/getty Pc ttyv7
root 429 0.0 0.1 3072 1152 con- I+ 5:13PM 0:00.00 dhclient: em0
[priv] (dhclient)
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