On Sat, Apr 30, 2011 at 09:08:05AM -0700, Randy Dunlap wrote: > On Sat, 30 Apr 2011 08:57:07 -0700 Greg KH wrote: > > > On Sat, Apr 30, 2011 at 02:02:05PM +0200, Nikola Ciprich wrote: > > > > There was a kernel parameter in the past that was used to make jiffies > > > > wrap > > > > a few minutes after boot, maybe we should revive it to try to reproduce > > > > without waiting 7 new months :-/ > > > hmm, I've googled this up, and it seems to have been 2.5.x patch, so it > > > will > > > certainly need some porting.. > > > I'll try to have a look on it tonight and report... > > > > I don't think any patch is needed, I thought we did that by default now, > > but I can't seem to find the code where it happens... > > > > odd. > > linux/jiffies.h: > > /* > * Have the 32 bit jiffies value wrap 5 minutes after boot > * so jiffies wrap bugs show up earlier. > */ > #define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) > > > and kernel/timer.c: > > u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
Thanks Randy. So that would mean that wrapping jiffies should be unrelated to the reported panics. Let's wait for Hidetoshi-san's analysis then. Regards, Willy _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
