[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
*** This bug is a duplicate of bug 1734327 *** https://bugs.launchpad.net/bugs/1734327 A SRU request has been submitted to have the problematic commit reverted until the permanent fix comes down from upstream. I'll mark this bug as a duplicate of bug 1734327 ** This bug has been marked a duplicate of bug 1734327 Kernel panic on a nfsroot system -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
*** This bug is a duplicate of bug 1734327 *** https://bugs.launchpad.net/bugs/1734327 ** Tags removed: pti ** Also affects: linux (Ubuntu Artful) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Artful) Status: New => Triaged ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Changed in: linux (Ubuntu Artful) Importance: Undecided => High ** Also affects: linux (Ubuntu Bionic) Importance: High Status: Triaged ** Tags added: bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Out of curiosity, can you link me to the upstream git repo for http://kernsec.org/pipermail/linux-security-module- archive/2017-December/004638.html? I want to be sure I'm looking at the right place. Interestingly, it looks like someone replied to your patch saying they would incorporate it in early December, so it seems this bug fell through the cracks more than once. Joseph Salisbury is subscribed to this bug and has commented on it above, so hopefully he will update regarding this when he gets a chance. This seems like a really simple fix, so I'm actually going to see if I can recompile 4.13.0-25-generic with this patch added to make it work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
The problematic patches are not yet in mainline/upstream kernels, and hence the fix patch is not yet in mainline/upstream kernels. Please ask Joseph Salisbury when the action for Artful kernel will be taken. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Thanks! Should I mark this bug as a duplicate then? Also, what is the process/timeline for that patch you linked being applied downstream into Artful? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
OK. Your report will be duplicate of 1731031, 1734327, 1734686. Explanation of the bug is http://kernsec.org/pipermail/linux-security-module-archive/2017-November/004532.html and the fix for the bug is http://kernsec.org/pipermail/linux-security-module-archive/2017-December/004638.html . According to http://kernel.ubuntu.com/git/ubuntu/ubuntu-artful.git/log/security , neither the problematic patches are reverted nor the fix patch is applied. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Okay, the bug still exists in 4.13.0-21-generic, but went away in 4.13.0-25-generic once I removed 'apparmor=0'. So I think Tetsuo may be on to something. Could this be a duplicate of this[0] bug? This would make sense considering the message of one the problematic commits is "add stacking support to apparmor network hooks". I'm not well versed enough in the kernel internals to say for sure, so I'm deferring to someone who knows better. Also, I'm not sure if I'm missing something, but while that bug is marked as "Fix Committed" in Launchpad[0], and a request was made to revert the pair of commits[1], I neither see a reply to that email saying the commits were indeed reverted nor subsequent commits to the Artful repo reverting the files affected by these commits. Is it possible that email got lost? [0] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734327 [1] https://lists.ubuntu.com/archives/kernel-team/2017-December/088715.html [2] http://kernel.ubuntu.com/git/ubuntu/ubuntu-artful.git/log/security/apparmor/lsm.c and http://kernel.ubuntu.com/git/ubuntu/ubuntu-artful.git/log/security/selinux/netlabel.c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
A way to see if this is related to the security patches is to test 4.13.0-21, which does not have the patches. It can be downloaded from: https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/ppa/+build/13870500 To test that kernel, install both the linux-image and linux-image-extra .deb packages. If the bug still exists with -21, we can perform a "Reverse" kernel bisect to identify the commit that fixes this bug in mainline. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Forgot to mention. Try removing apparmor=0 parameter for now. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734686 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
The dump looks like below bug. Was the bug already fixed in 4.13.0-25.29 ? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1731031 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734327 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Okay, I tested it with 4.15.0-041500rc7-generic and the issue disappeared. Thanks! Does that provide any insight into what exactly the error is and/or a possible workaround? Unfortunately I'm unable to use this kernel in the interim as I rely on the Nvidia kernel modules, which aren't compiling in DKMS. ** Tags added: kernel-fixed-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: kernel-key pti -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1742572] Re: System Hangs and General Protection Fault Occurs following NFS Access
Please note that I ran 'ubuntu-bug' from my most recent working kernel (from Zesty): 4.10.0-42-generic, so some of this log output may be inaccurate as a result. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742572 Title: System Hangs and General Protection Fault Occurs following NFS Access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
