[Kernel-packages] [Bug 1505948] Re: Memory arena corruption with FUSE (was Memory allocation failure crashes kernel hard, presumably related to FUSE)

2016-04-21 Thread Martin Gerhard Loschwitz
Done. ** Tags removed: verification-needed-wily ** Tags added: verification-done-wily -- 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/1505948 Title: Memory arena corruption with FUSE (wa

[Kernel-packages] [Bug 1505948] Re: Memory arena corruption with FUSE (was Memory allocation failure crashes kernel hard, presumably related to FUSE)

2016-02-25 Thread Martin Gerhard Loschwitz
This also affects the Xenial Standard Kernel. -- 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/1505948 Title: Memory arena corruption with FUSE (was Memory allocation failure crashes ker

[Kernel-packages] [Bug 1505948] Re: Memory allocation failure crashes kernel hard, presumably related to FUSE

2015-10-14 Thread Martin Gerhard Loschwitz
https://git.kernel.org/cgit/linux/kernel/git/stable/linux- stable.git/diff/fs/fuse/file.c?id=refs/tags/v4.1&id2=refs/tags/v4.0 is the diff between the version that works and the one that is broken. The candidate that broke functionality is likely here: https://lkml.org/lkml/2015/4/13/871 https://l

[Kernel-packages] [Bug 1398465] Re: Memory allocation failure, presumably in FUSE

2015-10-14 Thread Martin Gerhard Loschwitz
We can now confirm that the issue does not happen with 4.0.9. This leads to the assumption that the problem has either been fixed between 4.0 and 4.0.9, or, and I consider this much more likely, the problem was introduced between 4.0 and 4.1 on the main branch. -- You received this bug notificati

[Kernel-packages] [Bug 1505948] Re: Memory allocation failure crashes kernel hard, presumably related to FUSE

2015-10-14 Thread Martin Gerhard Loschwitz
We can now confirm that the issue does not happen with 4.0.9. This leads to the assumption that the problem has either been fixed between 4.0 and 4.0.9, or, and I consider this much more likely, the problem was introduced between 4.0 and 4.1 on the main branch. -- You received this bug notificati

[Kernel-packages] [Bug 1505948] Re: Memory allocation failure crashes kernel hard

2015-10-14 Thread Martin Gerhard Loschwitz
** Attachment added: "uname -a log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505948/+attachment/4494210/+files/uname-a.log -- 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/15

[Kernel-packages] [Bug 1505948] Re: Memory allocation failure crashes kernel hard

2015-10-14 Thread Martin Gerhard Loschwitz
** Attachment added: "/proc/version output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505948/+attachment/4494211/+files/version.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net

[Kernel-packages] [Bug 1505948] Re: Memory allocation failure crashes kernel hard

2015-10-14 Thread Martin Gerhard Loschwitz
As already mentioned in my email to the fuse developer mailing list, we have also tried to create direct i/o traffic on the affected mount directly but were not able to reproduce the issue. The problem only ever occurs once Qemu starts to run stuff on top of the FUSE mount. Other reports of this is

[Kernel-packages] [Bug 1505948] [NEW] Memory allocation failure crashes kernel hard, presumably related to FUSE

2015-10-14 Thread Martin Gerhard Loschwitz
Public bug reported: Hello everybody, Linux 4.1, 4.2 or 4.3-rc leads to an immediate kernel panic in our setup when trying to start a Qemu process on top of a fuse-based mount. Here is an example stacktrace: [ 739.807817] BUG: unable to handle kernel paging request at 8800a4104ea0 [ 739.84