[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-06-09 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.4.0-24.43 --- linux (4.4.0-24.43) xenial; urgency=low [ Kamal Mostafa ] * CVE-2016-1583 (LP: #1588871) - ecryptfs: fix handling of directory opening - SAUCE: proc: prevent stacking filesystems on top - SAUCE: ecryptfs: forbi

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-06-09 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.2.0-38.45 --- linux (4.2.0-38.45) wily; urgency=low [ Kamal Mostafa ] * CVE-2016-1583 (LP: #1588871) - ecryptfs: fix handling of directory opening - SAUCE: proc: prevent stacking filesystems on top - SAUCE: ecryptfs: forbid

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-25 Thread Colin Ian King
Tested on Xenial, 4.4.0-23-generic #41-Ubuntu, stress-ng --remap 8 can run without tripping the issue. ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-25 Thread Colin Ian King
Tested on Wily, 4.2.0-37-generic #43-Ubuntu, stress-ng --remap 8 can run without tripping the issue. ** Tags removed: verification-needed-wily ** Tags added: verification-done-wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-23 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.4.0-23.41 --- linux (4.4.0-23.41) xenial; urgency=low [ Kamal Mostafa ] * Release Tracking Bug - LP: #1582431 * zfs: disable module checks for zfs when cross-compiling (LP: #1581127) - [Packaging] disable zfs module checks wh

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-20 Thread Colin Ian King
Patch re-sent, V2 https://lists.ubuntu.com/archives/kernel-team/2016-May/077458.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1558120 Title: Kernel can be oopsed using remap_file_pages To man

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-20 Thread Colin Ian King
It appears that a subsequent fix for this from the aufs developer has landed: https://github.com/sfjro/aufs4-linux/commit/2d530d0b039ca2b1280598cf8b350d6c6552f7b8 I think we should drop my fix and pick up the official aufs fix instead. I'll re-test with this and then re-submit the patch once I am

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-19 Thread Kamal Mostafa
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If verification is not done by 5 working days from t

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-19 Thread Kamal Mostafa
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- wily' to 'verification-done-wily'. If verification is not done by 5 working days from today

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-07 Thread Colin Ian King
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released ** Changed in: linux (Ubuntu) Status: Fix Released => Fix Committed ** Changed in: linux (Ubuntu Wily) Importance: Undecided => High ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => High -- You rec

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-06 Thread Kamal Mostafa
** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Wily) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Wily) Status: New => Fix Committed ** Changed in: linux (Ubuntu Xenial) Status: New => Fi

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-06 Thread Colin Ian King
** Description changed: - While faffing around with the deprecated system call remap_file_pages I - was able to trigger an OOPs that can be reproduced every time. + [SRU][WILY][XENIAL] + + [JUSTIFICATION] + Running stress-ng --remap 4 will trip an oops on the remap. + + The bug is introduced by

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-05 Thread Colin Ian King
Reverting dee5220cf56dd1b998c74514d0f023b55e4eb425 ("UBUNTU: SAUCE: AUFS") allows me to run stress-ng --remap 8 w/o any crashes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1558120 Title: Kernel c

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-05 Thread Colin Ian King
Sanity checked above, seems like some debug in the mmap serializes the do_mmap'ing call and is the reasons why I failed to hit the bug with the above change. So ignore comment #45 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https:

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-05-05 Thread Colin Ian King
Bizarre as it seems, disabling the kernel module tainting stops this occurring. static inline void add_taint_module(struct module *mod, unsigned flag, enum lockdep_ok lockdep_ok) { - add_taint(flag, lockdep_ok); - mod->taints |= (1U << flag); +

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-03-24 Thread Colin Ian King
The merge base e50f9acafe11781b0163d27172d33faf824caf7b is bad. This means the bug has been fixed between e50f9acafe11781b0163d27172d33faf824caf7b and [d207274815a45631952c342a3b6959e79913195b]. ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) -- You re

[Bug 1558120] Re: Kernel can be oopsed using remap_file_pages

2016-03-18 Thread Colin Ian King
apport information ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: apport-collected xenial ** Description changed: While faffing around with the deprecated system call remap_file_pages I was able to trigger an OOPs that can be reproduced every time. uname