Date: Thu, 17 Jan 2002 10:16:46 +0900 From: Jun Kuriyama <kuriyama@imgsrc.co.jp> To: Current <FreeBSD-current@FreeBSD.org> Subject: panic: bioqdisksort() Message-ID: <7m7kqh22v5.wl@waterblue.imgsrc.co.jp>
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I got a panic with kernel around "Jan 16 09:02:54 JST".
Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic.id = 00000000
fault virtual address = 0xcaeef040
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01cc833
stack pointer = 0x10:0xf4f33a84
frame pointer = 0x10:0xf4f33a90
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 = 19128 (make)
kernel: type 12 trap, code=0
Stopped at bioqdisksort+0x2b: movl 0xc0(%ebx),%eax
db> t
bioqdisksort(c8ea80a8,caeeef80,c8ea7000,f4f33adc,c014e3de) at bioqdisksort+0x2b
adstrategy(caeeef80) at adstrategy+0x39
arstrategy(d54f271c,d54f271c,ec363c20,f4f33b08,c019f8d3) at arstrategy+0x2de
diskstrategy(d54f271c,c8efd100,d54f271c,0,f4f33b14) at diskstrategy+0xcd
spec_strategy(f4f33b2c,f4f33b38,c0290821,f4f33b2c,f4f33bfc) at spec_strategy+0x19b
spec_vnoperate(f4f33b2c,f4f33bfc,d54f271c,0,c0334380) at spec_vnoperate+0x15
ufs_strategy(f4f33b68,f4f33b74,c01ec78e,f4f33b68,f2c42f00) at ufs_strategy+0xa9
ufs_vnoperate(f4f33b68) at ufs_vnoperate+0x15
breadn(f2c42f00,0,800,0,0) at breadn+0xc2
bread(f2c42f00,0,800,0,f4f33bfc) at bread+0x1d
ffs_read(f4f33c20,2000,f4f33d20,2000,0) at ffs_read+0x2c3
vn_read(caeed100,f4f33c90,ca9f2200,0,f4ea6404) at vn_read+0x130
dofileread(f4ea6404,caeed100,3,8088000,2000) at dofileread+0xae
read(f4ea6404,f4f33d20,807e0e0,8095b00,8095b00) at read+0x51
syscall(2f,2f,2f,8095b00,8095b00) at syscall+0x25f
syscall_with_err_pushed() at syscall_with_err_pushed+0x1b
--- syscall (3, FreeBSD ELF, read), eip = 0x8061cd7, esp = 0xbfbfe748, ebp = 0xbfbfe764 ---
(kgdb) where
#0 dumpsys () at ../../../kern/kern_shutdown.c:492
#1 0xc01bdc6b in boot (howto=260) at ../../../kern/kern_shutdown.c:335
#2 0xc01be10d in panic (fmt=0xc02eac6a "from debugger")
at ../../../kern/kern_shutdown.c:634
#3 0xc013fb4d in db_panic (addr=-1071855565, have_addr=0, count=-1,
modif=0xf4f338f0 "") at ../../../ddb/db_command.c:452
#4 0xc013faeb in db_command (last_cmdp=0xc0339d64, cmd_table=0xc0339b84,
aux_cmd_tablep=0xc03306f8, aux_cmd_tablep_end=0xc03306fc)
at ../../../ddb/db_command.c:348
#5 0xc013fbb7 in db_command_loop () at ../../../ddb/db_command.c:474
#6 0xc0141f33 in db_trap (type=12, code=0) at ../../../ddb/db_trap.c:72
#7 0xc02bfd4a in kdb_trap (type=12, code=0, regs=0xf4f33a44)
at ../../../i386/i386/db_interface.c:167
#8 0xc02d0da0 in trap_fatal (frame=0xf4f33a44, eva=3404656704)
at ../../../i386/i386/trap.c:837
#9 0xc02d0ae9 in trap_pfault (frame=0xf4f33a44, usermode=0, eva=3404656704)
at ../../../i386/i386/trap.c:756
#10 0xc02d0653 in trap (frame={tf_fs = -1071972328, tf_es = -1070006256,
tf_ds = 16, tf_edi = -185965564, tf_esi = -924155736,
tf_ebp = -185386352, tf_isp = -185386384, tf_ebx = -890310784,
tf_edx = -890311808, tf_ecx = -924160000, tf_eax = -185965776,
tf_trapno = 12, tf_err = 0, tf_eip = -1071855565, tf_cs = 8,
tf_eflags = 66178, tf_esp = -924155904, tf_ss = 13507})
at ../../../i386/i386/trap.c:426
#11 0xc01cc833 in bioqdisksort (bioq=0xc8ea80a8, bp=0xcaeeef80)
at ../../../kern/subr_disklabel.c:91
#12 0xc014c951 in adstrategy (bp=0xcaeeef80) at ../../../dev/ata/ata-disk.c:293
#13 0xc014e3de in arstrategy (bp=0xd54f271c) at ../../../dev/ata/ata-raid.c:243
#14 0xc01cc6d5 in diskstrategy (bp=0xd54f271c) at ../../../kern/subr_disk.c:390
#15 0xc019f8d3 in spec_strategy (ap=0xf4f33b2c)
at ../../../fs/specfs/spec_vnops.c:494
#16 0xc019f1ed in spec_vnoperate (ap=0xf4f33b2c)
at ../../../fs/specfs/spec_vnops.c:119
#17 0xc0290821 in ufs_strategy (ap=0xf4f33b68) at vnode_if.h:762
#18 0xc0290fe5 in ufs_vnoperate (ap=0xf4f33b68)
at ../../../ufs/ufs/ufs_vnops.c:2657
#19 0xc01ec78e in breadn (vp=0xf2c42f00, blkno=0, size=2048, rablkno=0x0,
rabsize=0x0, cnt=0, cred=0x0, bpp=0xf4f33bfc) at vnode_if.h:762
#20 0xc01ec6c9 in bread (vp=0xf2c42f00, blkno=0, size=2048, cred=0x0,
bpp=0xf4f33bfc) at ../../../kern/vfs_bio.c:585
#21 0xc02886fb in ffs_read (ap=0xf4f33c20)
at ../../../ufs/ufs/ufs_readwrite.c:278
#22 0xc01ff044 in vn_read (fp=0xcaeed100, uio=0xf4f33c90, cred=0xca9f2200,
flags=0, td=0xf4ea6404) at vnode_if.h:279
#23 0xc01d5306 in dofileread (td=0xf4ea6404, fp=0xcaeed100, fd=3,
buf=0x8088000, nbyte=8192, offset=-1, flags=0) at ../../../sys/file.h:179
#24 0xc01d5189 in read (td=0xf4ea6404, uap=0xf4f33d20)
at ../../../kern/sys_generic.c:133
#25 0xc02d118b in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 134830848, tf_esi = 134830848, tf_ebp = -1077942428,
tf_isp = -185385612, tf_ebx = 134734048, tf_edx = 134774784,
(kgdb) up 11
#11 0xc01cc833 in bioqdisksort (bioq=0xc8ea80a8, bp=0xcaeeef80)
at ../../../kern/subr_disklabel.c:91
91 TAILQ_FOREACH(bn, &bioq->queue, bio_queue)
(kgdb) list
86 struct bio *bn;
87 struct bio *be;
88 struct thread *td = curthread;
89
90 if (td && td->td_ksegrp->kg_nice > 0) {
91 TAILQ_FOREACH(bn, &bioq->queue, bio_queue)
92 if (BIOTOBUF(bp)->b_vp != BIOTOBUF(bn)->b_vp)
93 break;
94 if (bn != NULL) {
95 mtx_lock(&dksort_mtx);
--
Jun Kuriyama <kuriyama@imgsrc.co.jp> // IMG SRC, Inc.
<kuriyama@FreeBSD.org> // FreeBSD Project
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