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! Thanks in advance, kind regards, Andreas Hartmann [1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf2f1abfbd0dba701f7f16ef619e4d2485de3366 [2] http://article.gmane.org/gmane.linux.kernel.pci/43539 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
