Date: Fri, 2 May 2003 19:32:16 +0800 From: "David Xu" <davidxu@freebsd.org> To: <freebsd-current@freebsd.org> Subject: another panic: ffs_blkfree: freeing free block Message-ID: <001901c3109e$7c733cb0$0701a8c0@tiger> References: <20030501135011.GA568@wombat.fafoe><86r87ixlb0.fsf@xa12.heimat.gr.jp> <3EB1BF31.B96B7A3C@mindspring.com>
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This panic happened when I am running some threaded program:
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
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This GDB was configured as "i386-undermydesk-freebsd"...
(no debugging symbols found)...
(kgdb) core vmcore.7
panic: absolutely cannot call smp_ipi_shootdown with interrupts already =
disabled
panic messages:
---
panic: ffs_blkfree: freeing free block
cpuid =3D 1; lapic.id =3D 01000000
boot() called on cpu#1
syncing disks, buffers remaining... panic: absolutely cannot call =
smp_ipi_shootdown with interrupts already disabled
cpuid =3D 1; lapic.id =3D 01000000
boot() called on cpu#1
Uptime: 1h25m6s
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 =
/home/davidxu/src/sys/i386/compile/xu/modules/home/davidxu/src/sys/module=
s/vesa/vesa.ko.debug...done.
Loaded symbols for =
/home/davidxu/src/sys/i386/compile/xu/modules/home/davidxu/src/sys/module=
s/vesa/vesa.ko.debug
Reading symbols from =
/home/davidxu/src/sys/i386/compile/xu/modules/home/davidxu/src/sys/module=
s/acpi/acpi.ko.debug...done.
Loaded symbols for =
/home/davidxu/src/sys/i386/compile/xu/modules/home/davidxu/src/sys/module=
s/acpi/acpi.ko.debug
(kgdb) symbol /home/davidxu/src/sys/i386/compile/xu/kernel.debug
Load new symbol table from =
"/home/davidxu/src/sys/i386/compile/xu/kernel.debug"? (y or n)=20
Reading symbols from =
/home/davidxu/src/sys/i386/compile/xu/kernel.debug...done.
(kgdb) bt
#0 doadump () at ../../../kern/kern_shutdown.c:238
#1 0xc01f16f3 in boot (howto=3D260) at =
../../../kern/kern_shutdown.c:370
#2 0xc01f1aaf in panic () at ../../../kern/kern_shutdown.c:543
#3 0xc031a4eb in smp_tlb_shootdown (vector=3D0, addr1=3D0, addr2=3D0)
at ../../../i386/i386/mp_machdep.c:2351
#4 0xc031a789 in smp_invlpg_range (addr1=3D0, addr2=3D0)
at ../../../i386/i386/mp_machdep.c:2483
#5 0xc031c8b8 in pmap_invalidate_range (pmap=3D0xc040e100, =
sva=3D3357540352,=20
eva=3D1) at ../../../i386/i386/pmap.c:719
#6 0xc031cc11 in pmap_qremove (sva=3D3357540352, count=3D0)
at ../../../i386/i386/pmap.c:964
#7 0xc0237c7b in vfs_vmio_release (bp=3D0xc7776c70)
at ../../../kern/vfs_bio.c:1591
#8 0xc0237306 in brelse (bp=3D0xc7776c70) at =
../../../kern/vfs_bio.c:1376
#9 0xc02b76be in softdep_disk_io_initiation (bp=3D0xc7820d38)
at ../../../ufs/ffs/ffs_softdep.c:3474
#10 0xc01b8f72 in spec_xstrategy (vp=3D0xc26f8920, bp=3D0xc7820d38) at =
buf.h:422
#11 0xc01b92ab in spec_specstrategy (ap=3D0x0)
at ../../../fs/specfs/spec_vnops.c:550
#12 0xc01b8248 in spec_vnoperate (ap=3D0x0)
at ../../../fs/specfs/spec_vnops.c:123
#13 0xc02cb39d in ufs_strategy (ap=3D0x0) at vnode_if.h:1114
#14 0xc02cbe98 in ufs_vnoperate (ap=3D0x0) at =
../../../ufs/ufs/ufs_vnops.c:2787
#15 0xc02363c7 in bwrite (bp=3D0xc26f8920) at vnode_if.h:1089
#16 0xc0238021 in vfs_bio_awrite (bp=3D0xc7820d38)
at ../../../kern/vfs_bio.c:1711
#17 0xc02befa2 in ffs_fsync (ap=3D0xcdcec890) at =
../../../ufs/ffs/ffs_vnops.c:258
#18 0xc02be16e in ffs_sync (mp=3D0xc26b6e00, waitfor=3D2, =
cred=3D0xc0eb6e80,=20
td=3D0xc03b52a0) at vnode_if.h:612
#19 0xc024b72b in sync (td=3D0xc03b52a0, uap=3D0x0)
at ../../../kern/vfs_syscalls.c:137
#20 0xc01f1252 in boot (howto=3D0) at ../../../kern/kern_shutdown.c:279
#21 0xc0146b95 in db_fncall (dummy1=3D0, dummy2=3D0, dummy3=3D1999,=20
dummy4=3D0xcdcec9c0 "\200b:?\213@???r") at =
../../../ddb/db_command.c:546
#22 0xc0146912 in db_command (last_cmdp=3D0xc037cc60, cmd_table=3D0x0,=20
aux_cmd_tablep=3D0xc0376d70, aux_cmd_tablep_end=3D0xc0376d74)
at ../../../ddb/db_command.c:346
#23 0xc0146a26 in db_command_loop () at ../../../ddb/db_command.c:470
#24 0xc01497ba in db_trap (type=3D3, code=3D0) at =
../../../ddb/db_trap.c:72
#25 0xc0308c63 in kdb_trap (type=3D3, code=3D0, regs=3D0xcdcecb20)
at ../../../i386/i386/db_interface.c:170
#26 0xc0321c6c in trap (frame=3D
{tf_fs =3D 24, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D -1034046576, =
tf_esi =3D 256, tf_ebp =3D -842085524, tf_isp =3D -842085556, tf_ebx =3D =
0, tf_edx =3D 0, tf_ecx =3D 32, tf_eax =3D 18, tf_trapno =3D 3, tf_err =
=3D 0, tf_eip =3D -1070559403, tf_cs =3D 8, tf_eflags =3D 662, tf_esp =
=3D -1070138054, tf_ss =3D -1070211574})
at ../../../i386/i386/trap.c:593
#27 0xc030a608 in calltrap () at {standard input}:97
#28 0xc01f1a4f in panic (fmt=3D0x0) at ../../../kern/kern_shutdown.c:527
#29 0xc02a627a in ffs_blkfree (fs=3D0xc2611000, devvp=3D0xc26f8920, =
bno=3D97744,=20
size=3D16384, inum=3D3656) at ../../../ufs/ffs/ffs_alloc.c:1768
#30 0xc02b41c3 in handle_workitem_freefrag (freefrag=3D0xc26904c0)
at ../../../ufs/ffs/ffs_softdep.c:1587
#31 0xc02b2eb3 in process_worklist_item (matchmnt=3D0x0, flags=3D0)
at ../../../ufs/ffs/ffs_softdep.c:767
#32 0xc02b2b90 in softdep_process_worklist (matchmnt=3D0x0)
at ../../../ufs/ffs/ffs_softdep.c:622
#33 0xc0247dee in sched_sync () at ../../../kern/vfs_subr.c:1761
#34 0xc01dd350 in fork_exit (callout=3D0xc0247b00 <sched_sync>, =
arg=3D0x0,=20
frame=3D0x0) at ../../../kern/kern_fork.c:792
(kgdb)=20
--
David Xu
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