[Bug 1749040] Re: KPTI support for arm64 systems

** Changed in: linux (Ubuntu Artful) Status: In Progress => Fix Released ** Changed in: linux (Ubuntu Bionic) Status: Incomplete => Fix Committed ** Changed in: linux (Ubuntu Bionic) Status: Fix Committed => Fix Released -- You received this bug notification because you

[Bug 1749040] Re: KPTI support for arm64 systems

I've reproduced the CRB1S panic with the current (non-kpti) kernel and without crypt lvm (standard MAAS install) and reported bug 1754053 to track it. We can rule that out as being caused by kpti. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed

[Bug 1749040] Re: KPTI support for arm64 systems

I rebooted the machine (lundmark) and restarted the test mentioned in the previous comment, this time the system crashed w/ a Synchronous External Abort: [23243.094384] Synchronous External Abort: synchronous parity or ECC error (0x8618) at 0xb0f74f68 This suggests a non-software

[Bug 1749040] Re: KPTI support for arm64 systems

** Attachment added: "combined kern.log/serial log of lundmark SEA crash" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5071412/+files/lundmark-cert-failure-sea.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Mon, Mar 5, 2018 at 9:06 AM, dann frazier wrote: > On Mon, Mar 5, 2018 at 7:47 AM, Paolo Pisati <1749...@bugs.launchpad.net> > wrote: >> Good, any other pending tests? > > Yes, just one more. I'm going to run the same test on the kpti kernel > on a different system

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Mon, Mar 5, 2018 at 7:47 AM, Paolo Pisati <1749...@bugs.launchpad.net> wrote: > Good, any other pending tests? Yes, just one more. I'm going to run the same test on the kpti kernel on a different system of the same config, but *without* lvm crypt. Starting that now. -- You received this bug

[Bug 1749040] Re: KPTI support for arm64 systems

Good, any other pending tests? If not, i'll move forward and send a the above v2 arm64 kpti patchset. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749040 Title: KPTI support for arm64 systems

[Bug 1749040] Re: KPTI support for arm64 systems

I was able to reproduce a crash on a crypted LVM system w/ the pre-KPTI kernel. LP: #1753489. The backtrace isn't identical, but it does show that crypted LVM was fragile even before the KPTI patches. -- You received this bug notification because you are a member of Ubuntu Bugs, which is

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Mon, Mar 5, 2018 at 2:34 AM, Paolo Pisati <1749...@bugs.launchpad.net> wrote: > Is there a way for me to manually run disk/disk_stress_ng_dm-1? I've just started a run on the server/config that failed the test, but with a pre-kpti kernel, to see if it follows kpti or the system/config. The

[Bug 1749040] Re: KPTI support for arm64 systems

Is there a way for me to manually run disk/disk_stress_ng_dm-1? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749040 Title: KPTI support for arm64 systems To manage notifications about this bug

[Bug 1749040] Re: KPTI support for arm64 systems

All failures expected. ** Attachment added: "Gigabyte R120 (ACPI mode ThunderX) results" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5067656/+files/r120.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1749040] Re: KPTI support for arm64 systems

crb1s results - all expected failures except disk/disk_stress_ng_dm-1 which is what was running when the panic mentioned in comment #39 occurred. ** Attachment added: "results from thunderx crb1s"

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Fri, Mar 2, 2018 at 4:48 AM, Paolo Pisati <1749...@bugs.launchpad.net> wrote: > If the bug in #39 is not related to kpti, can you spawn it into a > separate LP bug and add a reproducer? If it is shown to not be related to KPTI after I run those further tests, that is the plan. -dann --

[Bug 1749040] Re: KPTI support for arm64 systems

If the bug in #39 is not related to kpti, can you spawn it into a separate LP bug and add a reproducer? Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749040 Title: KPTI support for arm64

[Bug 1749040] Re: KPTI support for arm64 systems

Merlin system cert results. ** Attachment added: "results of cert on merlin" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5066621/+files/submission_2018-03-02T03.59.13.971794.html -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1749040] Re: KPTI support for arm64 systems

I've seen a couple crashes on a ThunderX CRB1S system - though at this point I don't have reason to believe it is related to KPTI. This system happened to be installed with LVM + crypted home, and we haven't ran the cert tests on such a config before. After the remaining tests complete, I plan to

[Bug 1749040] Re: KPTI support for arm64 systems

** Attachment added: "sabre test results - all errors expected" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5066572/+files/submission_2018-03-01T15.11.01.312793.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1749040] Re: KPTI support for arm64 systems

D05 & QDF2400 errors are all expected, thanks Manoj! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749040 Title: KPTI support for arm64 systems To manage notifications about this bug go to:

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Thu, Mar 1, 2018 at 8:50 AM, Paolo Pisati <1749...@bugs.launchpad.net> wrote: > I see 5 failures marked as blocker there: 4 couldn't complete due to the > test environment, and 1[*], apparently, is a CONFIG issue (so something > that predates this patchset). Sorry - I didn't have time to

[Bug 1749040] Re: KPTI support for arm64 systems

cert testing on QDF2400 ** Attachment added: "cert testing on QDF2400" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5066200/+files/submission_2018-03-01T15.40.44.388832.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1749040] Re: KPTI support for arm64 systems

Hisilicon D05-0 testing. ** Attachment added: "cert testing on Hisilicon" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5066199/+files/submission_2018-03-01T15.37.19.324054.html -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1749040] Re: KPTI support for arm64 systems

I see 5 failures marked as blocker there: 4 couldn't complete due to the test environment, and 1[*], apparently, is a CONFIG issue (so something that predates this patchset). Let's see what the other boards report. 1:

[Bug 1749040] Re: KPTI support for arm64 systems

Refreshed kernel now in ppa:dannf/kpti -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749040 Title: KPTI support for arm64 systems To manage notifications about this bug go to:

[Bug 1749040] Re: KPTI support for arm64 systems

** Attachment added: "Updated test results from an HP m400 (X-Gene) system" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5065762/+files/submission_2018-03-01T05.58.16.640032.html -- You received this bug notification because you are a member of Ubuntu Bugs, which

Re: [Bug 1749040] Re: KPTI support for arm64 systems

On Wed, Feb 28, 2018 at 10:12 AM, Paolo Pisati <1749...@bugs.launchpad.net> wrote: > Found && fixed. > > https://git.launchpad.net/~p-pisati/ubuntu/+source/linux/log/?h=artful- > master-next-arm64-kpti-414-backport > > I pushed two fixes on top of it: > > 1) 'syscalls: Use CHECK_DATA_CORRUPTION

[Bug 1749040] Re: KPTI support for arm64 systems

Found && fixed. https://git.launchpad.net/~p-pisati/ubuntu/+source/linux/log/?h=artful- master-next-arm64-kpti-414-backport I pushed two fixes on top of it: 1) 'syscalls: Use CHECK_DATA_CORRUPTION for addr_limit_user_check' fixes a FTBFS for armhf 2) 'arm64: mm: fix thinko in non-global page

[Bug 1749040] Re: KPTI support for arm64 systems

Yep, if it boots fine, i usually retry 2/3 times, and it has happened that it failed only the second or the third time i tried. Anyhow, now i'm down to this delta .config (the initial one had ~2k entries), so the bug appears to be ACPI related:

[Bug 1749040] Re: KPTI support for arm64 systems

Right - I should've mentioned that - the issue follows the guest kernel for me as well. I tested w/ latest upstream for both just in case the guest failure is a somehow a side-effect of a host kernel bug. Also, I should have mentioned that this is an intermittent failure for me. I sometimes have

[Bug 1749040] Re: KPTI support for arm64 systems

No need to install 4.16-rc3 in both host & guest: i can reproduce it on d05-6 using 4.13.0-36-generic #40~16.04.1 on host (no KPTI patchset) and 4.16.0-rc3+ on guest. Unfortunately defconfig boots fine, so there's something in that .config that trips it. If trying to reproduce it, remove the

[Bug 1749040] Re: KPTI support for arm64 systems

** Summary changed: - KPTI-enabled kernel fails to boot on Cavium ThunderX CRB + KPTI support for arm64 systems ** Attachment added: "config used to build 4.16-rc3 kernel" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749040/+attachment/5064177/+files/.config -- You received this