Thank you for your reply, > On Wed, Jun 25, 2014 at 01:55:05PM +0000, Mattis Lorentzon wrote: > > I have a similar issue with v3.16-rc2 as previously reported by Waldemar > Brodkorb for v3.15-rc4. > > https://lkml.org/lkml/2014/5/9/330 > > This URL returns no useful information. I find that lkml.org is broken more > times than not in recent years. Please use a different archive site when > referring to posts, thanks.
http://lkml.iu.edu/hypermail/linux/kernel/1405.1/01114.html > I have had two iMX6 platforms running root-NFS for about the last six to nine > months with various workloads, and have never seen this oops. > Unfortunately, the description above gives very little information for what > the mechanism to trigger this bug may be. For example, if I wanted to > reproduce it, what would I need to do? We have managed to trigger the Oops by just transferring a large file over nfs cat /mnt/foo > /dev/null where foo is a file that is approximately 2 GB. There may be some packet losses on this network, perhaps this differs from your workload? > > The error is sporadic and it seems to occur more frequently when using > perf. > > So it occurs when not using perf? Yes, certainly, see above. We have done some more investigations, please find it in this mail: http://lkml.iu.edu/hypermail/linux/kernel/1406.3/02190.html The Oops seems to have been introduced somewhere between v3.12 and v3.13: - The Oops is reproducible within seconds when running Linux 3.16-rc2. - We have observed the Oops on 8 different hardware units and two different chipsets (Freescale i.MX6 and Xilinx Zynq). - The Oops has not been seen on Linux 3.12 so it appears to be good. - The Oops has been seen on Linux 3.13, 3.14, 3.15, 3.16-rc2 so these appear to be bad. Configs and a couple of Oops reports are attached to the linked mail. Best regards, Mattis Lorentzon *************************************************************** Consider the environment before printing this message. To read Autoliv's Information and Confidentiality Notice, follow this link: http://www.autoliv.com/disclaimer.html *************************************************************** -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/