Justin Maggard <jmaggard10@xxxxxxxxx> writes: > On Wed, Dec 9, 2009 at 5:23 PM, Justin Maggard <jmaggard10@xxxxxxxxx> wrote: >> On Tue, Dec 8, 2009 at 7:18 AM, Jan Kara <jack@xxxxxxx> wrote: >>> Can you still switch consoles after the system hangs (it's good to >>> debug this on a text console)? If yes, could you press Alt-Sysrq-w and >>> take a picture of the console by digital camera or so (take pictures of >>> as many screens as possible using console scrollback)? Thanks. >> >> Thanks for the response. Console scrollback doesn't seem to work for >> me in that mode. I tried it three times. Two of the times the list >> was empty. The other time, the screen just listed a bunch of rm >> processes. > > I have a little more information to add. After noticing the recent > "Fix potential quota deadlock" patch on the mailing list, I figured it > would be worth a shot to try it without quotas enabled. This also > avoids the system hang. I tried applying that patch, but still had > the same symptoms using that kernel. So I'm seeing a consistent > system hang with ext4 when delalloc and quotas are enabled on an SMP > system. With either quotas or delalloc disabled, it doesn't hang. > Both enabled on a single processor system also doesn't hang. You also may try another patch "[PATCH] ext4: fix sleep inside spinlock issue aka #14739 V2" > > -Justin > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
