Date: Fri, 4 Dec 1998 12:46:46 +0600 (OS) From: Eugeny Kuzakov <kev@lab321.ru> To: hackers@FreeBSD.ORG Subject: My 2.2.8 panics! Message-ID: <Pine.BSF.4.02.9812041159430.4091-100000@lab321.ru>
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Hi !
I have freebsd sources cvsuped at 30-Nov-1998.
When I tryed to boot kernel, compiled with -g, I received the
message: "bounce memory out of range" and then system rebooted.
Why ?
I compiled kernel w/o debugging information with the same kernel config.
Last night this kernel traped. I saved them core dump.
The debug information is below:
gdb -k
GDB is free software and you are welcome to 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.
GDB 4.16 (i386-unknown-freebsd), Copyright 1996 Free Software Foundation,
Inc.
(kgdb) symbol-file kernel
Reading symbols from kernel...done.
(kgdb) exec-file /var/crash/kernel.0
(kgdb) core-file /var/crash/vmcore.0
IdlePTD 2c5000
current pcb at 24f8b8
panic: blkfree: freeing free frag
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
266 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
#1 0xf01199f3 in panic (fmt=0xf01cc821 "blkfree: freeing free frag")
at ../../kern/kern_shutdown.c:400
#2 0xf01ccc4c in ffs_blkfree (ip=0xf49fc900, bno=14782, size=1024)
at ../../ufs/ffs/ffs_alloc.c:1255
#3 0xf01ce9a3 in ffs_truncate (ap=0xefbffe74) at
../../ufs/ffs/ffs_inode.c:343
#4 0xf01d23f5 in ufs_inactive (ap=0xefbffea0) at vnode_if.h:1003
#5 0xf01392b7 in vrele (vp=0xf466de80) at vnode_if.h:699
#6 0xf01391ab in vput (vp=0xf466de80) at ../../kern/vfs_subr.c:858
#7 0xf01d5bd0 in ufs_remove (ap=0xefbffef4) at
../../ufs/ufs/ufs_vnops.c:697
#8 0xf013b539 in unlink (p=0xf4efaa00, uap=0xefbfff94, retval=0xefbfff84)
at vnode_if.h:459
#9 0xf01f6e37 in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 9707,
tf_esi = -272639788, tf_ebp = -272639884, tf_isp = -272629788,
tf_ebx = 1651904, tf_edx = 0, tf_ecx = 1642496, tf_eax = 10,
tf_trapno = 151552, tf_err = 7, tf_eip = 537416161, tf_cs = 31,
tf_eflags = 582, tf_esp = -272639996, tf_ss = 39})
at ../../i386/i386/trap.c:920
#10 0x200851e1 in ?? ()
#11 0x2b17 in ?? ()
#12 0x3b7c in ?? ()
#13 0x1095 in ?? ()
(kgdb) up 10
#10 0x200851e1 in ?? ()
(kgdb) frame frame->tf_ebp frame->tf_eip
No symbol "frame" in current context.
(kgdb) list
261 }
262 } else {
263 if (howto & RB_DUMP) {
264 if (!cold) {
265 savectx(&dumppcb);
266 dumppcb.pcb_cr3 = rcr3();
267 dumpsys();
268 }
269
270 if (PANIC_REBOOT_WAIT_TIME != 0) {
(kgdb) print tp
No symbol "tp" in current context.
(kgdb) up
#11 0x2b17 in ?? ()
(kgdb) q
NOTE: I tryed to inspect core dump of kernel, compiled w/o debug, but use
symbol table from this kernel compiled with debug.
I know that it not so correctly.
I will try :
1. Compile kernel with -g
2. strip -d it kernel
3. boot this kernel
4. When it will trap, I will inspect it with kgdb again.
Thanks for advices. This is production server and stable him work very
critical.
--
Best wishes, Eugeny Kuzakov
Laboratory 321 ( Omsk, Russia )
kev@lab321.ru
ICQ#: 5885106
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