Date: Sun, 20 Apr 2003 11:30:47 +0400 From: Dmitry Sivachenko <mitya@cavia.pp.ru> To: Don Lewis <truckman@FreeBSD.org> Cc: hackers@FreeBSD.org Subject: Re: Repeated similar panics on -STABLE Message-ID: <20030420073047.GA64397@fling-wing.demos.su> In-Reply-To: <200304192215.h3JMFKXB020012@gw.catspoiler.org> References: <200304192156.h3JLuDXB019980@gw.catspoiler.org> <200304192215.h3JMFKXB020012@gw.catspoiler.org>
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On Sat, Apr 19, 2003 at 03:15:20PM -0700, Don Lewis wrote:
> Dmitry,
>
> If you still have the core and kernel files, I'd appreciate it if you
> could point gdb at them and print the following stuff from the malloc()
> stack frame.
>
> indx
> &bucket[0]
> kbp
> *kpb
> allocsize
> npg
> cp
> freep
> *freep
> va
>
In backtrace I posted malloc was called twice. Since I am not sure
which one you are interested in, I am sending these values for both.
(kgdb) up 6
#6 0xc015daff in malloc (size=128, type=0xc02aca60, flags=2)
at /mnt/se3/releng_4/src/sys/kern/kern_malloc.c:243
243 va = kbp->kb_next;
(kgdb) p indx
$1 = 7
(kgdb) p &bucket[0]
$2 = (struct kmembuckets *) 0xc02bcee0
(kgdb) p kbp
$3 = (struct kmembuckets *) 0x5cdd8000
(kgdb) p *kpb
No symbol "kpb" in current context.
(kgdb) p *kbp
Cannot access memory at address 0x5cdd8000.
(kgdb) p allocsize
$4 = -730301488
(kgdb) p npg
$5 = 0
(kgdb) p cp
$6 = 0x0
(kgdb) p freep
$7 = (struct freelist *) 0x0
(kgdb) p va
$8 = 0x5cdd8000 <Address 0x5cdd8000 out of bounds>
(kgdb)
(kgdb) up 16
#22 0xc015daff in malloc (size=72, type=0xc029fee0, flags=0)
at /mnt/se3/releng_4/src/sys/kern/kern_malloc.c:243
243 va = kbp->kb_next;
(kgdb) p indx
$9 = 7
(kgdb) p &bucket[0]
$10 = (struct kmembuckets *) 0xc02bcee0
(kgdb) p kbp
$11 = (struct kmembuckets *) 0x5cdd8000
(kgdb) p *kbp
Cannot access memory at address 0x5cdd8000.
(kgdb) p allocsize
$12 = -349729108
(kgdb) p npg
$13 = 0
(kgdb) p cp
$14 = 0x0
(kgdb) p freep
$15 = (struct freelist *) 0x0
(kgdb) p va
$16 = 0x5cdd8000 <Address 0x5cdd8000 out of bounds>
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