test_095_kernel_symbols_missing_proc_self_stack failed with C

[Po-Hsu Lin]

Like bug 1802069
With this patch applied: http://kernel.ubuntu.com/git/ubuntu/ubuntu-cosmic.git/commit/?h=master-next&id=601cf8d59f415403b50e6bfbf124b3f005b7e49b

This test now failed with Cosmic kernel in proposed. Result before and after update

ubuntu@rumford:~$ uname -a
Linux rumford 4.18.0-11-generic #12-Ubuntu SMP Tue Oct 23 19:22:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@rumford:~$ cat /proc/self/stack
[<0>] proc_pid_stack+0xaa/0x100
[<0>] proc_single_show+0x56/0x90
[<0>] seq_read+0x16b/0x450
[<0>] __vfs_read+0x1b/0x40
[<0>] vfs_read+0x8f/0x140
[<0>] ksys_read+0x55/0xc0
[<0>] __x64_sys_read+0x1a/0x20
[<0>] do_syscall_64+0x5a/0x110
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[<0>] 0xffffffffffffffff

ubuntu@rumford:~$ uname -a
Linux rumford 4.18.0-12-generic #13-Ubuntu SMP Wed Nov 14 15:17:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@rumford:~$ cat /proc/self/stack
cat: /proc/self/stack: Permission denied

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1803921

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Po-Hsu Lin (cypressyew)]

https://git.launchpad.net/qa-regression-testing/commit/?id=beefdcab8432ae502c5ca6bf6094bfea53c077c0