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Date: Sun, 22 Aug 2010 18:39:27 +0200 From: Torsten Kaiser <just.for.lkml@...glemail.com> To: paulmck@...ux.vnet.ibm.com Cc: linux-kernel@...r.kernel.org Subject: Re: 2.6.36-rc1 hangs during XFS barrier test for / On Fri, Aug 20, 2010 at 9:32 PM, Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote: > On Fri, Aug 20, 2010 at 05:08:17PM +0200, Torsten Kaiser wrote: >> Hello, >> >> after installing 2.6.36-rc1 my system gets stuck during "Mounting root..." >> >> I'm using an initramfs to mount the root fs, because I'm using a >> stacked setup with md (raid1) -> dm-crypt -> xfs. My initramfs seems to have eaten the real OOPS. It was the (already reported) "kernel BUG at drivers/scsi/scsi_lib.c:1113". I will just test with -rc2 again. :-) >> Strange side effect: sometimes the cursor stops blinking for a few >> seconds, but then resumes blinking. Each of these blinking stalls are >> accompanied by a RCU stall message. > > This indicates that you have a "longer than average loop", probably > with interrupts disabled across the loop. Documentation/RCU/stallwarn.txt > has more information on this condition. The stall was detected on CPU #2, the same CPU that got the scsi_lib-BUG. So that very much just looks like a fallout from that. Thanks for you tipp, but I think, I will only bother you again, if I'm still seeing this after that OOPS has gotten fixed. Thanks, Torsten -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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