On Tue, Jul 28 2015 at 1:40pm -0400, Andreas Hartmann <andihartmann@xxxxxxxxxxxxxxx> wrote: > Hello! > > After long and heavy bisecting, I found this commit > "dm crypt: don't allocate pages for a partial request" [1] being the > cause of the ata errors and AMD-Vi IO_PAGE_FAULTs. > > That's the bisect I did with Linus' repository > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/ > > > git bisect start > # good: [3466b547e37b988723dc93465b7cb06b4b1f731f] Merge branches 'pnp', > 'pm-cpuidle' and 'pm-cpufreq' > git bisect good 3466b547e37b988723dc93465b7cb06b4b1f731f > # bad: [cd50b70ccd5c87794ec28bfb87b7fba9961eb0ae] Merge tag > 'pm+acpi-3.20-rc1-3' of > git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm > git bisect bad cd50b70ccd5c87794ec28bfb87b7fba9961eb0ae > # good: [27a22ee4c7d5839fd7e3e441c9d675c8a5c4c22c] Merge branch 'kbuild' > of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild > git bisect good 27a22ee4c7d5839fd7e3e441c9d675c8a5c4c22c > # good: [c189cb8ef62832f33b6cf757350a0270532a1ad8] Merge tag > 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio > git bisect good c189cb8ef62832f33b6cf757350a0270532a1ad8 > # good: [295324556c427d60b41668ab81a43f604533f456] Merge branch > 'i2c/for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux > git bisect good 295324556c427d60b41668ab81a43f604533f456 > # good: [1acd2de5facd7fbea499aea64a3a3d0ec7bb9b51] Merge branch > 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input > git bisect good 1acd2de5facd7fbea499aea64a3a3d0ec7bb9b51 > # good: [fde9f50f80fe89a9115b4bfa773017272597d85d] target: Add sanity > checks for DPO/FUA bit usage > > git bisect good fde9f50f80fe89a9115b4bfa773017272597d85d > > > # bad: [22aa66a3ee5b61e0f4a0bfeabcaa567861109ec3] dm snapshot: fix a > possible invalid memory access on unload > > > git bisect bad 22aa66a3ee5b61e0f4a0bfeabcaa567861109ec3 > > > # bad: [7145c241a1bf2841952c3e297c4080b357b3e52d] dm crypt: avoid > deadlock in mempools > > > git bisect bad 7145c241a1bf2841952c3e297c4080b357b3e52d > > > # good: [37527b869207ad4c208b1e13967d69b8bba1fbf9] dm io: reject > unsupported DISCARD requests with EOPNOTSUPP > > > git bisect good 37527b869207ad4c208b1e13967d69b8bba1fbf9 > > > # bad: [cf2f1abfbd0dba701f7f16ef619e4d2485de3366] dm crypt: don't > allocate pages for a partial request > > > git bisect bad cf2f1abfbd0dba701f7f16ef619e4d2485de3366 > > > # good: [f3396c58fd8442850e759843457d78b6ec3a9589] dm crypt: use unbound > workqueue for request processing > > git bisect good f3396c58fd8442850e759843457d78b6ec3a9589 > > > # first bad commit: [cf2f1abfbd0dba701f7f16ef619e4d2485de3366] dm crypt: > don't allocate pages for a partial request > > > How can I verify (e.g. w/ a patch to Linux 4.0.9) if this patch is > really the culprit? > > I'm heavily relying upon encryption: > > There are 3 disks: > - One 240 GB SSD (crypted LVM, swap and boot partition) > - Two SATA rotational 3 TB disks (WD ST3000DM001-1CH166, encrypted raid > /dev/md0, LVM) > - All in all 29 logical volumes with xfs as filesystem (besides swap > and bootpartition - the latter is ext4). > > The system is based on an AMD FX8350 processor (8 core) w/ 24GB RAM. > Motherboard is a Gigabyte GA-990XA-UD3. You can find a complete dmesg > output here [2]. > > > > I would be glad to get some assistance! Are your SATA devcies using NCQ? Please see this dm-devl thread (and this post in particular): https://www.redhat.com/archives/dm-devel/2015-June/msg00005.html -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
