On Wed, 07 Mar 2007 15:07:21 -0800 Dave Hansen <[EMAIL PROTECTED]> wrote:
> On Wed, 2007-03-07 at 14:16 -0800, Siddha, Suresh B wrote: > > On Wed, Mar 07, 2007 at 02:12:16PM -0800, Dave Hansen wrote: > > > I'm seeing weird hangs running ltp on 2.6.21-rc2-mm2. It manifests > > > itself by the waitpid06 test in LTP hanging. This is very, very > > > reproducible in about 5 seconds by adding '-s wait' to the ltp command > > > line. > > > > > > I see 4 waitpid06 processes on my 4-way machine spinning in userspace. > > > But, the weird part is that I can't ssh in once this happens, but I can > > > log in to the console. I've bisected it down to: > > > > > > sched-fix-idle-load-balancing-in-softirqd-context > > > > This sounds like an issue in merge we recently had and 2.6.21-rc2-mm2 > > already > > has a fix for this. > > > > sched-fix-idle-load-balancing-in-softirqd-context-fix.patch > > > > Can you please apply both > > sched-fix-idle-load-balancing-in-softirqd-context > > sched-fix-idle-load-balancing-in-softirqd-context-fix.patch > > and see if you still see this problem? > > I was confused that I couldn't find this fix in my patches directory, > but I double-checked, and realized that I was still on 2.6.21-rc2-mm1. > I must have grabbed the wrong broken-out tarball when I started the > bisect. Darn. > > Anyway, 2.6.21-rc2-mm2 appears to be OK. Sorry for the false alarm. > Ah, OK. I'll undrop those three patches. Michal, did rc2-mm2 make that weird hang go away for you? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
