I rebuilt my -CURRENT workstation last night. There still seems to be a
minor problem though. While I was running XFree 3.x (a rather old build,
compiled from ports):
$ pkg_info | grep XFree
XFree86-3.3.6_9 X11R6.3/XFree86 core distribution
there was the following panic. At the same time the disk was heavily
spinning, as I was updating my local NetBSD mirror with CVSup, and periodic
was running it's daily stuff. Does this look like a problem with X to you
all, or should I look for other causes? I am thinking of X giving me these
troubles, only because of frame #13 which is in an address that cannot be
printed by gdb. Any ideas?
(The bremfree panic is the second panic in the row, so it's probably a
whole different problem in itself.)
Script started on Fri Feb 8 05:55:22 2002
[toor@hades /var/crash]# gdb -k /usr/obj/usr/src/sys/CHARON/kernel.debug vmcore.1
GNU gdb 4.18
Copyright 1998 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 conditions.
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-unknown-freebsd"...Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb.291/gdb/dbxread.c line 2629
in elfstab_build_psymtabs
Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb.291/gdb/dbxread.c line 935
in fill_symbuf
IdlePTD at phsyical address 0x003d1000
initial pcb at physical address 0x00329bc0
panicstr: bremfree: bp 0xc2161734 not locked
panic messages:
---
panic: msleep
syncing disks... panic: bremfree: bp 0xc2166e4c not locked
Uptime: 2d15h0m41s
dumping to dev ad0s3b, offset 1966080
dump ata0: resetting devices .. done
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7
6 5 4 3 2 1
---
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:504
504 if (!dodump)
(kgdb) bt
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:504
#1 0xc01b8ec4 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:336
#2 0xc01b9361 in panic (fmt=0xc02b5da2 "bremfree: bp %p not locked") at
/usr/src/sys/kern/kern_shutdown.c:646
#3 0xc01e7ecf in bremfree (bp=0xc2161734) at /usr/src/sys/kern/vfs_bio.c:545
#4 0xc0196359 in spec_fsync (ap=0xc03d5e98) at
/usr/src/sys/fs/specfs/spec_vnops.c:407
#5 0xc0195e51 in spec_vnoperate (ap=0xc03d5e98) at
/usr/src/sys/fs/specfs/spec_vnops.c:119
#6 0xc024d449 in ffs_sync (mp=0xc0e00200, waitfor=2, cred=0xc05bee00,
td=0xc02f9604) at vnode_if.h:441
#7 0xc01f4c42 in sync (td=0xc02f9604, uap=0x0) at
/usr/src/sys/kern/vfs_syscalls.c:669
#8 0xc01b8b46 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:245
#9 0xc01b9361 in panic (fmt=0xc02cb2fe "%s") at
/usr/src/sys/kern/kern_shutdown.c:646
#10 0xc0289d78 in trap_fatal (frame=0xc03d5fa8, eva=791205) at
/usr/src/sys/i386/i386/trap.c:842
#11 0xc0289aad in trap_pfault (frame=0xc03d5fa8, usermode=0, eva=791205) at
/usr/src/sys/i386/i386/trap.c:756
#12 0xc02895ef in trap (frame={tf_fs = 0, tf_es = 0, tf_ds = 0, tf_edi = 51676,
tf_esi = 1816, tf_ebp = 264, tf_isp = -1069719596,
tf_ebx = 264, tf_edx = 980, tf_ecx = 6930, tf_eax = 0, tf_trapno = 12, tf_err
= 4, tf_eip = 4773, tf_cs = 49152,
tf_eflags = 721478, tf_esp = 4000, tf_ss = 0}) at
/usr/src/sys/i386/i386/trap.c:426
#13 0x12a5 in ?? ()
Cannot access memory at address 0x108.
(kgdb) list /usr/src/sys/kern/vfs_bio.c:545
540 int old_qindex = bp->b_qindex;
541
542 GIANT_REQUIRED;
543
544 if (bp->b_qindex != QUEUE_NONE) {
545 KASSERT(BUF_REFCNT(bp) == 1, ("bremfree: bp %p not
locked",bp));
546 TAILQ_REMOVE(&bufqueues[bp->b_qindex], bp, b_freelist);
547 bp->b_qindex = QUEUE_NONE;
548 } else {
549 if (BUF_REFCNT(bp) <= 1)
(kgdb) list /usr/src/sys/i386/i386/trap.c:426
421
422 KASSERT(cold || td->td_ucred != NULL,
423 ("kernel trap doesn't have ucred"));
424 switch (type) {
425 case T_PAGEFLT: /* page fault */
426 (void) trap_pfault(&frame, FALSE, eva);
427 goto out;
428
429 case T_DNA:
430 #ifdef DEV_NPX
(kgdb) q
[toor@hades /var/crash]# exit
Script done on Fri Feb 8 05:56:52 2002
Here's the dmesg output too:
Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #0: Thu Feb 7 22:51:16 EET 2002
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/CHARON
Preloaded elf kernel "/boot/kernel/kernel" at 0xc03b2000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc03b20a8.
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 132632338 Hz
CPU: Pentium/P54C (132.63-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x52c Stepping = 12
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 67108864 (65536K bytes)
avail memory = 61460480 (60020K bytes)
Intel Pentium detected, installing workaround for F00F bug
VESA: v1.2, 2048k memory, flags:0x0, mode table:0xc00c1bfa (c0001bfa)
VESA: S3 Incorporated. 86C325
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX3 ATA controller> port 0xf000-0xf00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <display, VGA> at device 11.0 (no driver attached)
ata: ata0 already exists; skipping it
ata: ata1 already exists; skipping it
sc: sc0 already exists; skipping it
vga: vga0 already exists; skipping it
orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sbc0: <Creative SB16/SB32> at port 0x388-0x38b,0x330-0x331,0x220-0x22f irq 5 drq 5,1
on isa0
pcm0: <SB16 DSP 4.13> on sbc0
midi0: <SB Midi Interface> on sbc0
midi1: <SB OPL FM Synthesizer> on sbc0
ata2: <Generic ESDI/IDE/ATA controller> at port 0x36e-0x36f,0x168-0x16f irq 10 on
isa0
unknown: <PNP0303> can't assign resources
unknown: <PNP0501> can't assign resources
unknown: <PNP0501> can't assign resources
IP Filter: v3.4.20 initialized. Default = block all, Logging = enabled
ata1-slave: timeout waiting for interrupt
ata1-slave: ATAPI identify failed
ad0: 42934MB <WDC WD450AA-00BAA0> [87233/16/63] at ata0-master WDMA2
acd0: CD-RW <PCRW804> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s1a
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