Date: Wed, 24 Jun 2009 01:36:31 GMT From: Alexey Ivanov <need4spam@bk.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/135986: FreeBSD crashes after VLC close Message-ID: <200906240136.n5O1aVRU041394@www.freebsd.org> Resent-Message-ID: <200906240140.n5O1e164048065@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 135986
>Category: misc
>Synopsis: FreeBSD crashes after VLC close
>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: Wed Jun 24 01:40:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Alexey Ivanov
>Release: FreeBSD-CURRENT
>Organization:
>Environment:
FreeBSD PH34R 8.0-CURRENT FreeBSD 8.0-CURRENT #60 r194610: Mon Jun 22 07:00:08 MSD 2009 savetherbtz@PH34R:/usr/obj/usr/src/sys/PH34R.8 i386
>Description:
If i close VLC while watching movie via NFS FreeBSD crashes
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0996b45
stack pointer = 0x28:0xea13c9b8
frame pointer = 0x28:0xea13c9d4
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 2110 (initial thread)
trap number = 12
panic: page fault
cpuid = 1
(kgdb) list *0xc0996b45
0xc0996b45 is in vaccess (/usr/src/sys/kern/vfs_subr.c:3535).
3530 *privused = 0;
3531
3532 dac_granted = 0;
3533
3534 /* Check the owner. */
3535 if (cred->cr_uid == file_uid) {
3536 dac_granted |= VADMIN;
3537 if (file_mode & S_IXUSR)
3538 dac_granted |= VEXEC;
3539 if (file_mode & S_IRUSR)
(kgdb) bt
#0 doadump () at pcpu.h:246
#1 0xc090e857 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:419
#2 0xc090eb4c in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:575
#3 0xc0c8c0bc in trap_fatal (frame=0xea13c978, eva=4)
at /usr/src/sys/i386/i386/trap.c:933
#4 0xc0c8c3a0 in trap_pfault (frame=0xea13c978, usermode=0, eva=4)
at /usr/src/sys/i386/i386/trap.c:846
#5 0xc0c8cf02 in trap (frame=0xea13c978) at /usr/src/sys/i386/i386/trap.c:528
#6 0xc0c70eab in calltrap () at /usr/src/sys/i386/i386/exception.s:165
#7 0xc0996b45 in vaccess (type=VREG, file_mode=33152, file_uid=1001,
file_gid=1001, accmode=128, cred=0x0, privused=0x0)
at /usr/src/sys/kern/vfs_subr.c:3535
#8 0xc0ba512e in ufs_access (ap=0xea13caec)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:402
#9 0xc0c997fc in VOP_ACCESS_APV (vop=0xc0e67c20, a=0xea13caec)
at vnode_if.c:571
#10 0xc09a7b99 in vn_open_cred (ndp=0xea13cbd0, flagp=0xea13cc58, cmode=384,
vn_open_flags=1, cred=0x0, fp=0x0) at vnode_if.h:254
#11 0xc09116ef in sigexit (td=0xc6ef9900, sig=11)
at /usr/src/sys/kern/kern_sig.c:2943
#12 0xc091210e in postsig (sig=11) at /usr/src/sys/kern/kern_sig.c:2617
#13 0xc094bd58 in ast (framep=0xea13cd38) at /usr/src/sys/kern/subr_trap.c:225
#14 0xc0c71804 in doreti_ast () at /usr/src/sys/i386/i386/exception.s:365
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200906240136.n5O1aVRU041394>