On 09/05/2009 12:12 AM, Trond Myklebust wrote: > On Fri, 2009-09-04 at 22:54 +0200, Jiri Slaby wrote: >> On 09/04/2009 01:40 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote: >>> The mm-of-the-moment snapshot 2009-09-03-16-35 has been uploaded to >> >> Hi, I got an oops while mounting an nfs: >> BUG: unable to handle kernel NULL pointer dereference at 000000000000001d >> IP: [<ffffffffa003924f>] rpcauth_lookupcred+0x4f/0xc0 [sunrpc] > > This looks like the auth->au_ops->lookup_cred() call failing due to a > faulty pointer, which should be impossible. > > I note that you had a kernel taint due to a warning before this Oops > happened. Any details? Ah, I didn't notice. It's: Pid: 3423, comm: pm-suspend Not tainted 2.6.31-rc8-mm1_64 #762 Call Trace: [<ffffffff8103fc48>] warn_slowpath_common+0x78/0xb0 [<ffffffff8103fc8f>] warn_slowpath_null+0xf/0x20 [<ffffffff8106950d>] __generic_smp_call_function_interrupt+0xfd/0x110 [<ffffffff8106956a>] hotplug_cfd+0x4a/0xa0 [<ffffffff81434e47>] notifier_call_chain+0x47/0x90 [<ffffffff8105b311>] raw_notifier_call_chain+0x11/0x20 [<ffffffff8141ece0>] _cpu_down+0x150/0x2d0 [<ffffffff8104169b>] disable_nonboot_cpus+0xab/0x130 [<ffffffff8106ee3d>] suspend_devices_and_enter+0xad/0x1a0 [<ffffffff8106f00b>] enter_state+0xdb/0xf0 [<ffffffff8106e741>] state_store+0x91/0x100 [<ffffffff8116c157>] kobj_attr_store+0x17/0x20 [<ffffffff8111c6a0>] sysfs_write_file+0xe0/0x160 [<ffffffff810c3ce8>] vfs_write+0xb8/0x1b0 [<ffffffff81434c35>] ? do_page_fault+0x185/0x350 [<ffffffff810c434c>] sys_write+0x4c/0x80 [<ffffffff8100be2b>] system_call_fastpath+0x16/0x1b ---[ end trace 73264e95657dec65 ]--- CPU1 is down > Also, were you doing anything special at the time (for instance removing > a module)? Not at all. I just did # mount /work # grep work /etc/fstab XXX.YYY.ZZZ:/work /work nfs defaults,intr 0 0 Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
