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Hello,
On Thu, 7 Oct 2010, Hans Schillstrom wrote:
Hi
Have you seen Slab corruption before ?
I got it when deleting a service when there is real-servers left
It's not related to IPv6 or fwmarks any "-D" causes it if there is rs attached
for that service
(and it's not bad RAM).
Do you have this patch which is already in nf-next:
http://archive.linuxvirtualserver.org/html/lvs-devel/2010-09/threads.html#00039
static inline void ip_vs_service_put(struct ip_vs_service *svc)
{
atomic_dec(&svc->usecnt);
}
There is one atomic_dec after free but I'm not sure
if it matches the dump below. If in doubt just add
svc = NULL in ip_vs_genl_set_cmd after the call to
ip_vs_del_service.
ex.
# ipvsadm -D -f 21 -6
Slab corruption: size-512 start=ffff880001760488, len=512
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<ffffffffa004aa3a>](__ip_vs_del_service+0xfa/0x108 [ip_vs])
020: 6b 6b 6b 6b 6a 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Single bit error detected. Probably bad RAM.
Run memtest86+ or a similar memory test tool.
Prev obj: start=ffff880001760270, len=512
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<ffffffff812b7a48>](skb_release_data+0xc1/0xc6)
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=ffff8800017606a0, len=512
Redzone: 0xd84156c5635688c0/0xd84156c5635688c0.
Last user: [<ffffffff812b3487>](sock_wmalloc+0x34/0x75)
000: 5a 5a 5a 5a 5a 5a 5a 5a 00 00 33 33 00 00 00 05
010: 00 00 02 01 01 01 86 dd 60 00 00 00 00 30 59 01
Regards
--
Julian Anastasov <ja@xxxxxx>
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