[Kernel-packages] [Bug 1450442] Re: Kernel Oops - unable to handle kernel NULL pointer dereference at (null); Call Trace: [ffffffff810fb39b] ? audit_compare_dname_path+0x2b/0xa0

2015-05-06 Thread Jinn Ko
Janne, good point. There's another possible workaround in certain circumstances. You can also clear the auditd rules which should allow you to continue working on a running system. This would be done by issuing an auditctl -D, after which you should be able to use the running system, albeit

[Kernel-packages] [Bug 1702910] Re: System freeze after in6_dev_finish_destroy errors

2017-08-02 Thread Jinn Ko
We've successfully reproduced the error on a newly built instance. We'll proceed to run the mainline kernel on the same instance. Worth noting that it took 441529 seconds (5.1 days) since boot for this to manifest in this case. On our previous instance the time to failure was in the order of a

[Kernel-packages] [Bug 1702910] Re: System freeze after in6_dev_finish_destroy errors

2017-07-07 Thread Jinn Ko
Logs are inline. If anything else is needed I'll capture and attach. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1702910] Re: System freeze after in6_dev_finish_destroy errors

2017-07-12 Thread Jinn Ko
We're aiming to reproduce this issue on another instance, then will switch to the mainline kernel to gather the info you need. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1702910

[Kernel-packages] [Bug 1702910] Re: System freeze after in6_dev_finish_destroy errors

2017-07-10 Thread Jinn Ko
With the sysctl net.ipv6.conf.all.disable_ipv6=1 we have still seen another kernel error as follows: [97989.224382] [ cut here ] [97989.224395] WARNING: CPU: 1 PID: 19570 at /build/linux-lts-xenial-ep3zLI/linux-lts-xenial-4.4.0/net/ipv6/addrconf_core.c:159

[Kernel-packages] [Bug 1702910] [NEW] System freeze after in6_dev_finish_destroy errors

2017-07-07 Thread Jinn Ko
Public bug reported: After the upgrade to the `4.4.0-83-generic #106~14.04.1-Ubuntu` kernel we are seeing system hangs with the following logs. Prior to this upgrade there were no crashes or kernel traces of this sort. We have ruled out physical hardware issues by moving the VM to another