Date: Fri, 29 Jan 1999 17:14:41 -0800 From: "Tom Jansen" <tjansen@linkexchange.com> To: bugs@FreeBSD.ORG Subject: panic: free: multiple frees Message-ID: <199901300114.RAA07674@linkexchange.com>
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We were having problems with crashed due to
panic: kmem_malloc: kmem_map too small.
At that point we upped VM_KMEM_SIZE in vmparam.h to (64 * 1024 * 1024).
Now we're seeing this on a FreeBSD 2.2.8-STABLE #0: Fri Jan 29 14:39:19 PST 1999
CPU: Pentium II (quarter-micron) (451.02-MHz 686-class CPU) system.
Any ideas?
www42# gdb -kernel kernel.0 vmcore.0
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...
IdlePTD 98b000
current pcb at 1fbb7c
panic: free: multiple frees
#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 0xf0115c87 in panic (fmt=0xf0112386 "free: multiple frees")
at ../../kern/kern_shutdown.c:400
#2 0xf011248c in free (addr=0xf35de900, type=9)
at ../../kern/kern_malloc.c:342
#3 0xf014527d in ifafree (ifa=0xf35de900) at ../../net/route.c:228
#4 0xf01451f6 in rtfree (rt=0xf5794600) at ../../net/route.c:212
#5 0xf0145674 in rtrequest (req=2, dst=0xf5841ca0, gateway=0xf5841cb0,
netmask=0x0, flags=393223, ret_nrt=0x0) at ../../net/route.c:491
#6 0xf014a8e5 in in_rtqkill (rn=0xf5794600, rock=0xf01ecf84)
at ../../netinet/in_rmx.c:270
#7 0xf014487c in rn_walktree (h=0xf3554e00, f=0xf014a890 <in_rtqkill>,
w=0xf01ecf84) at ../../net/radix.c:959
#8 0xf014a9a2 in in_rtqtimo (rock=0xf3554e00) at ../../netinet/in_rmx.c:311
#9 0xf010ce38 in softclock () at ../../kern/kern_clock.c:715
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