[SAC] trac: BUG: soft lockup - CPU

[Markus Neteler]

Hi,

(for me Apache continues to respond slowly on trac):

dmesg:
...
[19924396.427601] BUG: soft lockup - CPU#2 stuck for 61s! [trac-admin:972]
[19924415.597807] BUG: soft lockup - CPU#3 stuck for 61s! [pdflush:24297]
[20051940.751082] BUG: soft lockup - CPU#4 stuck for 61s! [apache2:4622]
[20051940.836670] BUG: soft lockup - CPU#1 stuck for 61s! [apache2:4640]
[20219180.401345] BUG: soft lockup - CPU#1 stuck for 61s! [apache2:8370]
[20219181.349415] BUG: soft lockup - CPU#3 stuck for 61s! [apache2:8334]
[20219181.387306] BUG: soft lockup - CPU#0 stuck for 61s! [apache2:8363]
[20251863.914273] BUG: soft lockup - CPU#4 stuck for 61s! [apache2:23852]
[20837077.997591] BUG: soft lockup - CPU#2 stuck for 61s! [apache2:10380]
[20837077.997656] BUG: soft lockup - CPU#0 stuck for 61s! [apache2:10430]
[20837078.165652] BUG: soft lockup - CPU#4 stuck for 61s! [apache2:10431]
[20837078.173417] BUG: soft lockup - CPU#1 stuck for 61s! [apache2:10505]
[21086420.102174] BUG: soft lockup - CPU#0 stuck for 61s! [apache2:4119]
[21304066.506554] BUG: soft lockup - CPU#0 stuck for 61s! [apache2:28775]
[21304066.548553] BUG: soft lockup - CPU#1 stuck for 61s! [swapper:0]
[21304066.824800] BUG: soft lockup - CPU#3 stuck for 61s! [swapper:0]
[21304066.830676] BUG: soft lockup - CPU#4 stuck for 61s! [swapper:0]
[21304066.833072] BUG: soft lockup - CPU#2 stuck for 61s! [swapper:0]
[21423479.514876] BUG: soft lockup - CPU#4 stuck for 61s! [swapper:0]
...

The machine is still "lenny" ... at least a reboot might be needed.
Opinions?

Markus