After some CIFS testing on 2.6.18-92.el5xen, I got this: slab error in kmem_cache_destroy(): cache `cifs_request': Can't free all objects [<c046bdbf>] kmem_cache_destroy+0x61/0xf3 [<e0f61153>] cifs_destroy_request_bufs+0x14/0x28 [cifs] [<e0f7e576>] exit_cifs+0x1e/0x80 [cifs] [<c043aeae>] sys_delete_module+0x192/0x1b8 [<c04451fd>] audit_syscall_entry+0x14b/0x17d [<c0405413>] syscall_call+0x7/0xb ======================= kmem_cache_create: duplicate cache cifs_request [<c046b91b>] kmem_cache_create+0x453/0x483 [<c046aa47>] kmem_cache_alloc+0x54/0x5e [<e0f61276>] cifs_init_request_bufs+0x53/0x182 [cifs] [<e0c3c151>] init_cifs+0x151/0x22c [cifs] [<c043aafd>] sys_init_module+0x18b5/0x1a60 [<c046bd5e>] kmem_cache_destroy+0x0/0xf3 [<c04451fd>] audit_syscall_entry+0x14b/0x17d [<c0405413>] syscall_call+0x7/0xb ...not sure exactly what caused it...
Turned out to be a problem in the error path for readdir. Patch has been pushed upstream.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
in kernel-2.6.18-113.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2009-0225.html