Date: Sun, 2 Mar 2003 13:31:03 +0800 From: leafy <leafy@leafy.idv.tw> To: freebsd-current@freebsd.org Subject: distributed folding client panics -current Message-ID: <20030302053103.GA566@leafy.idv.tw>
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panic: bwrite: buffer is not busy???
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x20
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01b2036
stack pointer = 0x10:0xcd32da90
frame pointer = 0x10:0xcd32dab4
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 = 14 (swi1: net)
trap number = 12
panic: page fault
syncing disks, buffers remaining... panic: bwrite: buffer is not busy???
Uptime: 10h44m40s
Dumping 255 MB
ata0: resetting devices ..
done
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:239
239 dumping++;
(kgdb) where
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:239
#1 0xc01bc519 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:371
#2 0xc01bc783 in panic () at /usr/src/sys/kern/kern_shutdown.c:542
#3 0xc0200982 in bwrite (bp=0xc7838668) at /usr/src/sys/kern/vfs_bio.c:795
#4 0xc02023f9 in vfs_bio_awrite (bp=0xc7838668)
at /usr/src/sys/kern/vfs_bio.c:1689
#5 0xc0209daf in vop_stdfsync (ap=0xcd32d888)
at /usr/src/sys/kern/vfs_default.c:755
#6 0xc0180f50 in spec_fsync (ap=0xcd32d888)
at /usr/src/sys/fs/specfs/spec_vnops.c:422
#7 0xc0180428 in spec_vnoperate (ap=0x0)
at /usr/src/sys/fs/specfs/spec_vnops.c:123
#8 0xc026f487 in ffs_sync (mp=0xc25b9a00, waitfor=2, cred=0xc0eb5e80,
td=0xc0316840) at vnode_if.h:612
#9 0xc021720b in sync (td=0xc0316840, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:138
#10 0xc01bc0fc in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:280
#11 0xc01bc783 in panic () at /usr/src/sys/kern/kern_shutdown.c:542
#12 0xc02c9c92 in trap_fatal (frame=0xcd32da50, eva=0)
at /usr/src/sys/i386/i386/trap.c:843
#13 0xc02c9972 in trap_pfault (frame=0xcd32da50, usermode=0, eva=32)
at /usr/src/sys/i386/i386/trap.c:757
#14 0xc02c9460 in trap (frame=
---Type <return> to continue, or q <return> to quit---
{tf_fs = -1058209768, tf_es = -852361200, tf_ds = -1071382512, tf_edi = -1
058255824, tf_esi = 0, tf_ebp = -852305228, tf_isp = -852305284, tf_ebx = -10704
44436, tf_edx = -1058255824, tf_ecx = -1014380816, tf_eax = 1, tf_trapno = 12, t
f_err = 0, tf_eip = -1071964106, tf_cs = 8, tf_eflags = 66050, tf_esp = 16, tf_s
s = -1071351664}) at /usr/src/sys/i386/i386/trap.c:444
#15 0xc02b95f8 in calltrap () at {standard input}:96
#16 0xc0242699 in tcp_input (m=0xc0ec4c30, off0=20)
at /usr/src/sys/netinet/tcp_input.c:2324
#17 0xc023bc56 in ip_input (m=0xc0ed7c00)
at /usr/src/sys/netinet/ip_input.c:947
#18 0xc023bd42 in ipintr () at /usr/src/sys/netinet/ip_input.c:965
#19 0xc022d713 in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:97
#20 0xc01a8371 in ithread_loop (arg=0xc0ec2100)
at /usr/src/sys/kern/kern_intr.c:536
#21 0xc01a7263 in fork_exit (callout=0xc01a81a0 <ithread_loop>, arg=0x0,
frame=0x0) at /usr/src/sys/kern/kern_fork.c:871
--
"Without the userland, the kernel is useless."
--inspired by The Tao of Programming
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