On 8/07/2006 9:38 a.m., Andrew Morton wrote:
Reuben Farrelly <[email protected]> wrote:
The core slab data structures were wrecked. For kmalloc(), no less.
Something secretly destroyed your kernel, and it could be anything. Nice.
Having now turned on slab debugging, is it possibly related to this message
which appeared in my log when I booting up earlier?
Jul 8 02:49:39 tornado kernel: EXT3-fs: mounted filesystem with ordered data mode.
Jul 8 02:49:39 tornado kernel: Adding 497972k swap on /dev/sdc9. Priority:-1
extents:1 across:497972k
Jul 8 02:49:40 tornado kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
Jul 8 02:49:40 tornado kernel: Netfilter messages via NETLINK v0.30.
Jul 8 02:49:40 tornado kernel: ip_conntrack version 2.4 (4060 buckets, 32480
max) - 288 bytes per conntrack
Jul 8 02:49:40 tornado kernel: Slab corruption: start=ffff81003efd7000, len=4096
Jul 8 02:49:40 tornado kernel: 170: ff ff ff ff 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b
Jul 8 02:49:40 tornado kernel: e1000: eth0: e1000_watchdog: NIC Link is Up 1000
Mbps Full Duplex
Jul 8 02:49:40 tornado kernel: GRE over IPv4 tunneling driver
Yikes! Until we fix that there's no point in looking at anything else.
CONFIG_DEBUG_PAGEALLOC would nail this bug in a flash, but x86_64 doesn't
implement the damn thing :(
So if this is repeatable it would be of some value if you can work out what
causes it - start by disabling netfilter.
It hasn't come back after a quick reboot, but I'll be more vigilant than usual
for it. With that warning above and the nasty crash before that which maybe
related, I'm thinking that it's not just a one-off thing.
reuben
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