Re: possible deadlock in fs_reclaim_acquire (2)

2021-02-11 Thread Michal Hocko
On Thu 11-02-21 14:49:43, Dan Carpenter wrote: > On Thu, Feb 11, 2021 at 11:50:38AM +0100, 'Michal Hocko' via syzkaller-bugs > wrote: > > On Thu 11-02-21 11:22:25, Jan Kara wrote: > > > On Thu 11-02-21 12:07:29, Hillf Danton wrote: > > > > I haven't received Hillf's email. > > > > [...] > > > >

Re: possible deadlock in fs_reclaim_acquire (2)

2021-02-11 Thread Jan Kara
On Thu 11-02-21 20:04:14, Hillf Danton wrote: > On Thu 11-02-21 12:07:29, Jan Kara wrote: > >> Fix 71b565ceff37 ("ext4: drop ext4_kvmalloc()") by restoring the > >> GFP_NOFS introduced in dec214d00e0d ("ext4: xattr inode deduplication"). > >> > >> Note this may be the fix also to possible

Re: possible deadlock in fs_reclaim_acquire (2)

2021-02-11 Thread Dan Carpenter
On Thu, Feb 11, 2021 at 11:50:38AM +0100, 'Michal Hocko' via syzkaller-bugs wrote: > On Thu 11-02-21 11:22:25, Jan Kara wrote: > > On Thu 11-02-21 12:07:29, Hillf Danton wrote: > > I haven't received Hillf's email. > > [...] > > > Fix 71b565ceff37 ("ext4: drop ext4_kvmalloc()") by restoring the

Re: possible deadlock in fs_reclaim_acquire (2)

2021-02-11 Thread Michal Hocko
On Thu 11-02-21 11:22:25, Jan Kara wrote: > On Thu 11-02-21 12:07:29, Hillf Danton wrote: I haven't received Hillf's email. [...] > > Fix 71b565ceff37 ("ext4: drop ext4_kvmalloc()") by restoring the > > GFP_NOFS introduced in dec214d00e0d ("ext4: xattr inode deduplication"). > > > > Note this

Re: possible deadlock in fs_reclaim_acquire (2)

2021-02-11 Thread Jan Kara
On Thu 11-02-21 12:07:29, Hillf Danton wrote: > On Wed, 10 Feb 2021 17:25:19 -0800 > > syzbot found the following issue on: > > > > HEAD commit:825b5991 Merge tag '5.11-rc6-smb3' of git://git.samba.org/.. > > git tree: upstream > > console output:

possible deadlock in fs_reclaim_acquire (2)

2021-02-10 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:825b5991 Merge tag '5.11-rc6-smb3' of git://git.samba.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=117927bf50 kernel config: https://syzkaller.appspot.com/x/.config?x=bd1f72220b2e57eb