Date: 21 Feb 2003 14:23:48 +0100 From: Tobias Reifenberger <treif@mayn.de> To: current@freebsd.org Subject: panic: tcp related? Message-ID: <1045833827.806.31.camel@dmon>
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Hi
With yesterday's current I get repeating panics while having increased
tcp traffic. I don't know if this is really tcp related.
A backtrace is attached. I'll supply more info if needed.
bye
--
Tobias Reifenberger -- treif@mayn.de -- DG1NGT
GEE e* dpu s:- a-- C+++ UB+++ L- W+ N+ w--- Y+ tv+ b++ D++ h++ r---
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GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
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This GDB was configured as "i386-undermydesk-freebsd"...
panic: bremfree: bp 0xc73cec78 not locked
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x15259
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01a47c0
stack pointer = 0x10:0xccdb7cb4
frame pointer = 0x10:0xccdb7cc0
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 = 12 (swi6: tty:sio clock)
trap number = 12
panic: page fault
syncing disks, buffers remaining... panic: bremfree: bp 0xc73cec78 not locked
Uptime: 16m6s
Dumping 247 MB
ata0: resetting devices ..
done
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
#0 doadump () at ../../../kern/kern_shutdown.c:239
239 dumping++;
(kgdb) bt
#0 doadump () at ../../../kern/kern_shutdown.c:239
#1 0xc01ac369 in boot (howto=260) at ../../../kern/kern_shutdown.c:371
#2 0xc01ac598 in panic () at ../../../kern/kern_shutdown.c:542
#3 0xc01e3629 in bremfreel (bp=0xc73cec78) at ../../../kern/vfs_bio.c:672
#4 0xc01e35b1 in bremfree (bp=0xc73cec78) at ../../../kern/vfs_bio.c:659
#5 0xc01e52ae in vfs_bio_awrite (bp=0xc73cec78) at ../../../kern/vfs_bio.c:1714
#6 0xc02706d1 in ffs_fsync (ap=0xccdb7b38) at ../../../ufs/ffs/ffs_vnops.c:257
#7 0xc026fafc in ffs_sync (mp=0xc25bec00, waitfor=2, cred=0xc0e80e80, td=0xc031a320) at vnode_if.h:612
#8 0xc01f5756 in sync (td=0xc031a320, uap=0x0) at ../../../kern/vfs_syscalls.c:138
#9 0xc01abfc5 in boot (howto=256) at ../../../kern/kern_shutdown.c:280
#10 0xc01ac598 in panic () at ../../../kern/kern_shutdown.c:542
#11 0xc02bf7b8 in trap_fatal (frame=0xccdb7c74, eva=86617) at ../../../i386/i386/trap.c:844
#12 0xc02bf4eb in trap_pfault (frame=0xccdb7c74, usermode=0, eva=86617) at ../../../i386/i386/trap.c:758
#13 0xc02bf0e1 in trap (frame=
{tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -1070636219, tf_esi = 222, tf_ebp = -858030912, tf_isp = -858030944, tf_ebx = 86617, tf_edx = 16, tf_ecx = 215, tf_eax = -1058465200, tf_trapno = 12, tf_err = 0, tf_eip = -1072019520, tf_cs = 8, tf_eflags = 66182, tf_esp = -1028071744, tf_ss = 86441}) at ../../../i386/i386/trap.c:445
#14 0xc02b1008 in calltrap () at {standard input}:96
#15 0xc022250a in tcp_timer_2msl (xtp=0xc2b8dec0) at ../../../netinet/tcp_timer.c:222
#16 0xc01b8012 in softclock (dummy=0x0) at ../../../kern/kern_timeout.c:195
#17 0xc019d616 in ithread_loop (arg=0xc0e8f200) at ../../../kern/kern_intr.c:536
#18 0xc019ca2f in fork_exit (callout=0xc019d4f0 <ithread_loop>, arg=0xc0e8f200, frame=0xccdb7d48)
at ../../../kern/kern_fork.c:871
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