Date: Wed, 3 Sep 2008 13:48:05 GMT From: Jason Detar <jason@eicomm.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/127066: kernel panic Message-ID: <200809031348.m83Dm5FJ098227@www.freebsd.org> Resent-Message-ID: <200809031350.m83Do24j093848@freefall.freebsd.org>
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>Number: 127066
>Category: kern
>Synopsis: kernel panic
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Sep 03 13:50:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Jason Detar
>Release: 7.0-RELEASE-p2
>Organization:
Elite Internet Communications, Inc.
>Environment:
FreeBSD ads4.anandtech.com 7.0-RELEASE-p2 FreeBSD 7.0-RELEASE-p2 #0: Wed Jun 18 06:48:16 UTC 2008 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
We have four servers with different hardware and releases of FreeBSD ranging from 6.3-STABLE to 7.0-RELEASE-p3 and we encounter a kernel panic on all machines, usually 1-2x daily. Here is the details of the dump:
[root@ads4 /usr/obj/usr/src/sys/GENERIC]# kgdb kernel.debug /var/crash/vmcore.0
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
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This GDB was configured as "amd64-marcel-freebsd".
Unread portion of the kernel message buffer:
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x0
fault code = supervisor read data, page not present
instruction pointer = 0x8:0xffffffff80468dff
stack pointer = 0x10:0xffffffffb0a899c0
frame pointer = 0x10:0xffffff0003143000
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = resume, IOPL = 0
current process = 76583 (httpd)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 5d16h11m42s
Physical memory: 4083 MB
Dumping 453 MB: 438 422 406 390 374 358 342 326 310 294 278 262 246 230 214 198 182 166 150 134 118 102 86 70 54 38 22 6
#0 doadump () at pcpu.h:194
194 __asm __volatile("movq %%gs:0,%0" : "=r" (td));
(kgdb) list *0xffffffff80468dff
0xffffffff80468dff is in lf_advlock (/usr/src/sys/kern/kern_lockf.c:295).
290 (td->td_wmesg == lockstr) &&
291 (i++ < maxlockdepth)) {
292 waitblock = (struct lockf *)td->td_wchan;
293 /* Get the owner of the blocking lock */
294 waitblock = waitblock->lf_next;
295 if ((waitblock->lf_flags & F_POSIX) == 0)
296 break;
297 nproc = (struct proc *)waitblock->lf_id;
298 if (nproc == (struct proc *)lock->lf_id) {
299 PROC_SUNLOCK(wproc);
(kgdb) backtrace
#0 doadump () at pcpu.h:194
#1 0x0000000000000004 in ?? ()
#2 0xffffffff80477699 in boot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:409
#3 0xffffffff80477a9d in panic (fmt=0x104 <Address 0x104 out of bounds>)
at /usr/src/sys/kern/kern_shutdown.c:563
#4 0xffffffff8072ed44 in trap_fatal (frame=0xffffff001a8ec680,
eva=18446742974643116240) at /usr/src/sys/amd64/amd64/trap.c:724
#5 0xffffffff8072f9bf in trap (frame=0xffffffffb0a89910)
at /usr/src/sys/amd64/amd64/trap.c:251
#6 0xffffffff807156be in calltrap ()
at /usr/src/sys/amd64/amd64/exception.S:169
#7 0xffffffff80468dff in lf_advlock (ap=Variable "ap" is not available.
)
at /usr/src/sys/kern/kern_lockf.c:294
#8 0xffffffff8044ec5b in kern_fcntl (td=0xffffff001a8ec680, fd=Variable "fd" is not available.
)
at vnode_if.h:1036
#9 0xffffffff8044f01f in fcntl (td=0xffffff001a8ec680, uap=0xffffffffb0a89be0)
at /usr/src/sys/kern/kern_descrip.c:336
#10 0xffffffff8072f397 in syscall (frame=0xffffffffb0a89c70)
at /usr/src/sys/amd64/amd64/trap.c:852
#11 0xffffffff807158cb in Xfast_syscall ()
at /usr/src/sys/amd64/amd64/exception.S:290
#12 0x000000080100807c in ?? ()
Previous frame inner to this frame (corrupt stack?)
>How-To-Repeat:
Leave Apache22 & PHP5 installed from ports running
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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