On Sat, 04 Jul 2009 12:41:42 +0200 Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > On Sat, 2009-07-04 at 13:03 +0400, Alexander Barinov wrote: > > The initial symptom of the bug was system lockup when executing > > 'ifdown eth0' with 'BUG: scheduling while atomic'. Trying to > > understand the cause of the bug and find a workaround I was able to > > find an easier way to reproduce it. By executing > > 'cat /proc/net/wireless' I get the same bug: > This should have been fixed by > 87057825824973f29cf2f37cff1e549170b2d7e6. For some reason everybody > seems to have assumed that get_wireless_stats can sleep, which before > that commit it could _not_. The patch you have mentioned was not directly applicable to 2.6.30 kernel so I pulled wireless-testing git tree and compiled it. This deteriorated the situation further - now after executing 'cat /proc/net/wireless' I get kernel lockup without any further messages. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
