Date: Fri, 2 Nov 2001 08:06:36 -0800 (PST) From: David Jones <djones@zoonami.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/31710: kernel reboots; looks like an unintended trap in xl? Message-ID: <200111021606.fA2G6aM88874@freefall.freebsd.org>
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>Number: 31710
>Category: kern
>Synopsis: kernel reboots; looks like an unintended trap in xl?
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Nov 02 08:10:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: David Jones
>Release: 4.3
>Organization:
Zoonami Limited
>Environment:
FreeBSD topcat.zoonami.com 4.3-RELEASE FreeBSD 4.3-RELEASE #0: Thu Nov 1 14:13:
13 GMT 2001 root@topcat.zoonami.com:/usr/src/sys/compile/GENERIC i386
>Description:
I am using smbclient to copy a number of files from a PC (beaker) to my FreeBSD box (topcat). The following command:
smbclient //beaker/backup-home -U mhollis%mhollis -Tc backup-home.tar
crashes the FreeBSD box. Usually having copied about 300 MB of the 9GB or so. It doesn't seem to matter where the tar file is (that is, which disk I choose to write it on). I've just worked out how to enable kernel crash dumps. Here's the output of gdb where:
(kgdb) where
#0 dumpsys () at ../../kern/kern_shutdown.c:469
#1 0xc01abe83 in boot (howto=256) at ../../kern/kern_shutdown.c:309
#2 0xc01ac200 in poweroff_wait (junk=0xc037a3ef, howto=0)
at ../../kern/kern_shutdown.c:556
#3 0xc0316199 in trap_fatal (frame=0xc0383324, eva=3234354685)
at ../../i386/i386/trap.c:951
#4 0xc0315e71 in trap_pfault (frame=0xc0383324, usermode=0, eva=3234354685)
at ../../i386/i386/trap.c:844
#5 0xc0315a2b in trap (frame={tf_fs = 6750224, tf_es = -1058799600,
tf_ds = -1061748720, tf_edi = -1061699328, tf_esi = 6751386,
tf_ebp = -1070058640, tf_isp = -1070058672, tf_ebx = -1061699328,
tf_edx = -1062043648, tf_ecx = 1868770924, tf_eax = 1431037,
tf_trapno = 12, tf_err = 2, tf_eip = -1071055393, tf_cs = 8,
tf_eflags = 68099, tf_esp = -1058777568, tf_ss = -1061846784})
at ../../i386/i386/trap.c:443
#6 0xc028fddf in xl_newbuf (sc=0xc0e45000, c=0xc0e45620)
at ../../pci/if_xl.c:1716
#7 0xc028ffb0 in xl_rxeof (sc=0xc0e45000) at ../../pci/if_xl.c:1817
#8 0xc0290688 in xl_intr (arg=0xc0e45000) at ../../pci/if_xl.c:2036
(kgdb) frame 6
#6 0xc028fddf in xl_newbuf (sc=0xc0e45000, c=0xc0e45620)
at ../../pci/if_xl.c:1716
1716 MCLGET(m_new, M_DONTWAIT);
(kgdb) info local
_mp = 0x0
_ms = 6751386
_mm = (struct mbuf *) 0x67049a
m_new = (struct mbuf *) 0xc0b7c100
As you can see it's a generic kernel.
I have these crash dumps lying around, let me know if you want any more information. Hardware details, etc.
This is very annoying at the moment, because I was intending to use exactly that command to do my PC backups.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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