Hello, On Saturday 09 October 2010 13:23:29 Julian Anastasov wrote: > > 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: Yes > 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. added svc = NULL, but it did not make any difference :-( > > > 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> > -- Regards Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe lvs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
