From nobody@FreeBSD.org Mon Aug 9 22:41:16 2010 Return-Path: Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3843E106564A for ; Mon, 9 Aug 2010 22:41:16 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 270A48FC1B for ; Mon, 9 Aug 2010 22:41:16 +0000 (UTC) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id o79MfFnL009214 for ; Mon, 9 Aug 2010 22:41:15 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id o79MfF7L009213; Mon, 9 Aug 2010 22:41:15 GMT (envelope-from nobody) Message-Id: <201008092241.o79MfF7L009213@www.freebsd.org> Date: Mon, 9 Aug 2010 22:41:15 GMT From: "Oleksandr V. Typlyns'kyi" To: freebsd-gnats-submit@FreeBSD.org Subject: 8.1-RELEASE kernel panic X-Send-Pr-Version: www-3.1 X-GNATS-Notify: >Number: 149479 >Category: kern >Synopsis: [panic] 8.1-RELEASE kernel panic >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Aug 09 22:50:01 UTC 2010 >Closed-Date: >Last-Modified: Sun Sep 05 10:49:41 UTC 2010 >Originator: Oleksandr V. Typlyns'kyi >Release: 8.1-RELEASE >Organization: >Environment: FreeBSD bm5.sm 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Sat Jul 17 15:47:57 EEST 2010 root@bm10.sm:/usr/obj/usr/src/sys/BM i386 >Description: Unread portion of the kernel message buffer: kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 3; apic id = 03 fault virtual address = 0x14 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0688fef stack pointer = 0x28:0xe81589d4 frame pointer = 0x28:0xe81589f0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 18657 (httpd) trap number = 12 panic: page fault cpuid = 3 Uptime: 7d1h3m30s Physical memory: 2038 MB Dumping 258 MB: 243 227 211 195 179 163 147 131 115 99 83 67 51 35 19 3 Reading symbols from /boot/kernel/aio.ko...done. Loaded symbols for /boot/kernel/aio.ko #0 doadump () at pcpu.h:246 246 __asm __volatile("movl %%fs:0,%0" : "=r" (td)); (kgdb) where #0 doadump () at pcpu.h:246 #1 0xc064d8e7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 #2 0xc064db49 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:590 #3 0xc082c76c in trap_fatal (frame=0xe8158994, eva=20) at /usr/src/sys/i386/i386/trap.c:938 #4 0xc082d061 in trap (frame=0xe8158994) at /usr/src/sys/i386/i386/trap.c:328 #5 0xc080fdfb in calltrap () at /usr/src/sys/i386/i386/exception.s:165 #6 0xc0688fef in turnstile_broadcast (ts=0x0, queue=0) at /usr/src/sys/kern/subr_turnstile.c:832 #7 0xc063da09 in _mtx_unlock_sleep (m=0xc094b950, opts=0, file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:675 #8 0xc06ccbd1 in lookup (ndp=0xe8158b5c) at /usr/src/sys/kern/vfs_lookup.c:907 #9 0xc06cd28b in namei (ndp=0xe8158b5c) at /usr/src/sys/kern/vfs_lookup.c:269 #10 0xc06dbad2 in kern_statat_vnhook (td=0xcae82500, flag=512, fd=-100, path=0xbfbfa118
, pathseg=UIO_USERSPACE, sbp=0xe8158c18, hook=0) at /usr/src/sys/kern/vfs_syscalls.c:2346 #11 0xc06dbc4c in kern_statat (td=0xcae82500, flag=512, fd=-100, path=0xbfbfa118
, pathseg=UIO_USERSPACE, sbp=0xe8158c18) at /usr/src/sys/kern/vfs_syscalls.c:2327 #12 0xc06dbc86 in kern_lstat (td=0xcae82500, path=0xbfbfa118
, pathseg=UIO_USERSPACE, sbp=0xe8158c18) at /usr/src/sys/kern/vfs_syscalls.c:2400 #13 0xc06dbd2f in lstat (td=0xcae82500, uap=0xe8158cf8) at /usr/src/sys/kern/vfs_syscalls.c:2390 #14 0xc082ccc3 in syscall (frame=0xe8158d38) at /usr/src/sys/i386/i386/trap.c:1111 #15 0xc080fe60 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:261 #16 0x00000033 in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) bt full #0 doadump () at pcpu.h:246 No locals. #1 0xc064d8e7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 _giantcnt = Variable "_giantcnt" is not available. (kgdb) list *0xc0688fef 0xc0688fef is in turnstile_broadcast (/usr/src/sys/kern/subr_turnstile.c:832). 827 828 /* 829 * Transfer the blocked list to the pending list. 830 */ 831 mtx_lock_spin(&td_contested_lock); 832 TAILQ_CONCAT(&ts->ts_pending, &ts->ts_blocked[queue], td_lockq); 833 mtx_unlock_spin(&td_contested_lock); 834 835 /* 836 * Give a turnstile to each thread. The last thread gets (kgdb) list *0xc06cd28b 0xc06cd28b is in namei (/usr/src/sys/kern/vfs_lookup.c:269). 264 VREF(dp); 265 } 266 if (vfslocked) 267 ndp->ni_cnd.cn_flags |= GIANTHELD; 268 ndp->ni_startdir = dp; 269 error = lookup(ndp); 270 if (error) { 271 uma_zfree(namei_zone, cnp->cn_pnbuf); 272 #ifdef DIAGNOSTIC 273 cnp->cn_pnbuf = NULL; (kgdb) list *0xc06dbad2 0xc06dbad2 is in kern_statat_vnhook (/usr/src/sys/kern/vfs_syscalls.c:2346). 2341 2342 NDINIT_AT(&nd, LOOKUP, ((flag & AT_SYMLINK_NOFOLLOW) ? NOFOLLOW : 2343 FOLLOW) | LOCKSHARED | LOCKLEAF | AUDITVNODE1 | MPSAFE, pathseg, 2344 path, fd, td); 2345 2346 if ((error = namei(&nd)) != 0) 2347 return (error); 2348 vfslocked = NDHASGIANT(&nd); 2349 error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td); 2350 if (!error) { (kgdb) list *0xc06dbc4c 0xc06dbc4c is in kern_statat (/usr/src/sys/kern/vfs_syscalls.c:2328). 2323 kern_statat(struct thread *td, int flag, int fd, char *path, 2324 enum uio_seg pathseg, struct stat *sbp) 2325 { 2326 2327 return (kern_statat_vnhook(td, flag, fd, path, pathseg, sbp, NULL)); 2328 } 2329 2330 int 2331 kern_statat_vnhook(struct thread *td, int flag, int fd, char *path, 2332 enum uio_seg pathseg, struct stat *sbp, (kgdb) list *0xc06dbd2f 0xc06dbd2f is in lstat (/usr/src/sys/kern/vfs_syscalls.c:2391). 2386 { 2387 struct stat sb; 2388 int error; 2389 2390 error = kern_lstat(td, uap->path, UIO_USERSPACE, &sb); 2391 if (error == 0) 2392 error = copyout(&sb, uap->ub, sizeof (sb)); 2393 return (error); 2394 } >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: Responsible-Changed-From-To: freebsd-i386->freebsd-bugs Responsible-Changed-By: remko Responsible-Changed-When: Sun Sep 5 10:49:26 UTC 2010 Responsible-Changed-Why: This might be more generic then i386 only http://www.freebsd.org/cgi/query-pr.cgi?pr=149479 >Unformatted: