Comment 10 for bug 374359

Just saw this on a 10.04 system, but with a vanilla kernel 2.6.35.2 from source. So it may still be an upstream kernel bug. Looked like this:

Aug 25 17:13:30 xxx kernel: [159044.622651] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
Aug 25 17:13:30 xxx kernel: [159044.622662] IP: [<ffffffffa0467369>] cifs_show_options+0xf9/0x480 [cifs]
Aug 25 17:13:30 xxx kernel: [159044.622685] PGD 10e54f067 PUD 110f6b067 PMD 0
Aug 25 17:13:30 xxx kernel: [159044.622693] Oops: 0000 [#1] SMP
Aug 25 17:13:30 xxx kernel: [159044.622699] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
Aug 25 17:13:30 xxx kernel: [159044.622707] CPU 0
Aug 25 17:13:30 xxx kernel: [159044.622710] Modules linked in: nls_cp437 cifs binfmt_misc ipt_MASQUERADE iptable_nat nf_nat bridge stp kvm_amd kvm x
Aug 25 17:13:30 xxx kernel: i e1000e ieee1394 pata_via sata_via tulip

... and then everything went unstable