Date: Wed, 5 Aug 1998 09:50:01 -0700 (PDT) From: Brett Glass <brett@lariat.org> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/7367: panic: malloc: wrong bucket Message-ID: <199808051650.JAA27529@freefall.freebsd.org>
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The following reply was made to PR kern/7367; it has been noted by GNATS.
From: Brett Glass <brett@lariat.org>
To: freebsd-gnats-submit@freebsd.org, rivers@dignus.com, hackers@freebsd.com
Cc: Subject: Re: kern/7367: panic: malloc: wrong bucket
Date: Wed, 05 Aug 1998 10:43:05 -0600
FreeBSD 2.2.7-RELEASE: We've been getting kernel panics, with spontaneous
reboots, during periods of heavy memory and CPU activity (e.g. kernel
rebuilds and gzip -9 on large files). dmesg output follows. Sometimes, the
system just reboots without flashing a message, but we have seen an error
message that complains of a "recursive call" to malloc() and one panic
reboot displayed a screen that mentioned a fatal "page not found" error.
The problem seems to occur when physical memory is fully committed and
we're swapping. I suspect that the bug will be easier to flush out if the
system has less memory -- i.e. if it has 8 MB or 16 MB of RAM rather than
32 MB.
We'd suspect hardware, except that RAM all tests good and we've changed
nothing but the OS version. What's more, the system ONLY CRASHES when
specific programs are run -- e.g. when we do a kernel recompile or
run that backup.
System stats:
Intel 486DX4/100
Zeos "Rattler" motherboard with integrated IDE
16 MB RAM
Mitsumi CD-ROM with proprietary interface
10 serial ports w/multiport cards
Western Digital Caviar 2.5 GB IDE drive
Artisoft AE-3 NE2000 clone
Diamond PCI graphics adapter (not running X, so
VGA mode used always)
dmesg output follows:
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 2.2.7-RELEASE #0: Mon Aug 3 03:43:28 MDT 1998
root@lariat.lariat.org:/usr/src/sys/compile/LARIAT
CPU: i486 DX4 (486-class CPU)
Origin = "GenuineIntel" Id = 0x480 Stepping=0
Features=0x3<FPU,VME>
real memory = 16777216 (16384K bytes)
avail memory = 15089664 (14736K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82424ZX (Saturn) cache DRAM controller> rev 4 on pci0:0:0
chip1 <Intel 82378ZB PCI-ISA bridge> rev 3 on pci0:2:0
vga0 <Display device> rev 0 on pci0:13:0
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <4 virtual consoles, flags=0x0>
ed0 at 0x320-0x33f irq 5 on isa
ed0: address 00:00:6e:24:e4:15, type NE2000 (16 bit)
sio0 at 0x1e0-0x1e7 flags 0x185 on isa
sio0: type 16550A (multiport)
sio1 at 0x280-0x287 irq 9 flags 0x185 on isa
sio1: type 16550A (multiport master)
sio2 at 0x3f8-0x3ff flags 0x585 on isa
sio2: type 16550A (multiport)
sio3 at 0x2f8-0x2ff flags 0x585 on isa
sio3: type 16550A (multiport)
sio4 at 0x3e8-0x3ef flags 0x585 on isa
sio4: type 16550A (multiport)
sio5 at 0x2e8-0x2ef irq 4 flags 0x585 on isa
sio5: type 16550A (multiport master)
sio6 at 0x1f8-0x1ff flags 0x985 on isa
sio6: type 16550A (multiport)
sio7 at 0x1e8-0x1ef flags 0x985 on isa
sio7: type 16550A (multiport)
sio8 at 0x2a8-0x2af flags 0x985 on isa
sio8: type 16550A (multiport)
sio9 at 0x1a8-0x1af irq 3 flags 0x985 on isa
sio9: type 16550A (multiport master)
lpt0 at 0x3bc-0x3c3 irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <WDC AC32500H>
wd0: 2441MB (4999680 sectors), 4960 cyls, 16 heads, 63 S/T, 512 B/S
mcd0: type Mitsumi FX001D, version info: D 2
mcd0 at 0x310-0x313 irq 10 on isa
npx0 flags 0x1 on motherboard
npx0: INT 16 interface
WARNING: / was not properly dismounted.
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