Date: Sat, 5 Jul 2003 20:03:28 -0400 From: Mike Makonnen <mtm@identd.net> To: freebsd-current@FreeBSD.Org Subject: XFree86 kernel panic Message-ID: <20030706000328.GA1139@kokeb.ambesa.net>
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--rwEMma7ioTxnRzrJ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi guys, Attached is a gdb trace of a panic on a -current system from a few days ago. It seems like it was caused by a select(2) in XFree86. Although I was testing some unrelated changes in libthr kernel code, I have seen this panic before (about 2 weeks ago) on a stock kernel. FreeBSD kokeb.ambesa.net 5.1-CURRENT FreeBSD 5.1-CURRENT #12: Sat Jul 5 02:00:40 EDT 2003 mtm@kokeb.ambesa.net:/a/current/obj/a/current/src/sys/THRTEST i386 Cheers. -- Mike Makonnen | GPG-KEY: http://www.identd.net/~mtm/mtm.asc mtm@identd.net | D228 1A6F C64E 120A A1C9 A3AA DAE1 E2AF DBCC 68B9 mtm@FreeBSD.Org| FreeBSD - The Power To Serve --rwEMma7ioTxnRzrJ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=panic Content-Transfer-Encoding: quoted-printable Script started on Sat Jul 5 19:43:02 2003 Jul/05 mtm@kokeb ~% sudo gdb -k /a/current/obj/a/current/src/sys/THRTEST/ke= rnel.debug /var/crash/vmcore.9 Password: GNU gdb 5.2.1 (FreeBSD) Copyright 2002 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 condition= s. 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-undermydesk-freebsd"... panic: page fault panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address =3D 0x818181b1 fault code =3D supervisor read, page not present instruction pointer =3D 0x8:0xc026a3e2 stack pointer =3D 0x10:0xd2657b08 frame pointer =3D 0x10:0xd2657b1c code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, def32 1, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 3 current process =3D 735 (XFree86) trap number =3D 12 panic: page fault syncing disks, buffers remaining... 2223 2223 2222 2221 2221 2219 2219 2219= 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219 2219= 2219 2219=20 giving up on 154 buffers Uptime: 16h51m12s Dumping 255 MB ata0: resetting devices .. done 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 --- Reading symbols from /boot/kernel/snd_pcm.ko...done. Loaded symbols for /boot/kernel/snd_pcm.ko Reading symbols from /boot/kernel/snd_via82c686.ko...done. Loaded symbols for /boot/kernel/snd_via82c686.ko Reading symbols from /boot/kernel/acpi.ko...done. Loaded symbols for /boot/kernel/acpi.ko Reading symbols from /boot/kernel/netgraph.ko...done. Loaded symbols for /boot/kernel/netgraph.ko Reading symbols from /boot/kernel/ng_ether.ko...done. Loaded symbols for /boot/kernel/ng_ether.ko Reading symbols from /boot/kernel/ng_pppoe.ko...done. Loaded symbols for /boot/kernel/ng_pppoe.ko Reading symbols from /boot/kernel/ng_socket.ko...done. Loaded symbols for /boot/kernel/ng_socket.ko Reading symbols from /boot/kernel/if_tun.ko...done. Loaded symbols for /boot/kernel/if_tun.ko #0 doadump () at /a/current/src/sys/kern/kern_shutdown.c:240 240 dumping++; (kgdb) bt #0 doadump () at /a/current/src/sys/kern/kern_shutdown.c:240 #1 0xc023f1fd in boot (howto=3D256) at /a/current/src/sys/kern/kern_shutdown.c:372 #2 0xc023f578 in panic () at /a/current/src/sys/kern/kern_shutdown.c:550 #3 0xc03d42a0 in trap_fatal (frame=3D0xd2657ac8, eva=3D0) at /a/current/src/sys/i386/i386/trap.c:836 #4 0xc03d3fb3 in trap_pfault (frame=3D0xd2657ac8, usermode=3D0, eva=3D2172= 748209) at /a/current/src/sys/i386/i386/trap.c:750 #5 0xc03d3b98 in trap (frame=3D {tf_fs =3D 24, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D 3, tf_esi =3D 3= 6, tf_ebp =3D -765101284, tf_isp =3D -765101324, tf_ebx =3D -1032921444, tf= _edx =3D -1032921444, tf_ecx =3D -1028802816, tf_eax =3D -2122219135, tf_tr= apno =3D 12, tf_err =3D 0, tf_eip =3D -1071209502, tf_cs =3D 8, tf_eflags = =3D 78466, tf_esp =3D -1032945408, tf_ss =3D 64}) at /a/current/src/sys/i386/i386/trap.c:435 #6 0xc03c56c8 in calltrap () at {standard input}:96 #7 0xc02654cf in selscan (td=3D0xc28bbd10, ibits=3D0xd2657b9c, obits=3D0xd= 2657b8c,=20 nfd=3D50) at file.h:272 #8 0xc0264f8d in kern_select (td=3D0xc28bbd10, nd=3D50, fd_in=3D0x81fba20,= =20 fd_ou=3D0x0, fd_ex=3D0x0, tvp=3D0xd2657cd8) at /a/current/src/sys/kern/sys_generic.c:822 #9 0xc0264b56 in select (td=3D0x0, uap=3D0xd2657d14) at /a/current/src/sys/kern/sys_generic.c:726 #10 0xc03d459a in syscall (frame=3D {tf_fs =3D 47, tf_es =3D 47, tf_ds =3D 47, tf_edi =3D -1, tf_esi =3D = 7482434, tf_ebp =3D -1077937896, tf_isp =3D -765100684, tf_ebx =3D 0, tf_ed= x =3D 16, tf_ecx =3D 143876576, tf_eax =3D 93, tf_trapno =3D 0, tf_err =3D = 2, tf_eip =3D 673590515, tf_cs =3D 31, tf_eflags =3D 12870, tf_esp =3D -107= 7938516, tf_ss =3D 47}) at /a/current/src/sys/i386/i386/trap.c:1023 #11 0xc03c571d in Xint0x80_syscall () at {standard input}:138 ---Can't read userspace from dump, or kernel process--- (kgdb) qqui=08 =08=08 =08=08 =08uit=08 =08t =1B]2;mtm (ttyp2) kokeb:~=07=1B]1;mtm@kokeb:~=07Jul/05 mtm@kokeb ~% ^D=08= =08exit Script done on Sat Jul 5 19:44:17 2003 --rwEMma7ioTxnRzrJ--
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