Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-26 Thread J. Bruce Fields
On Fri, Jun 26, 2020 at 12:32:42PM +0200, Dmitry Vyukov wrote: > So far this crash happened only once: > https://syzkaller.appspot.com/bug?extid=0e37e9d19bded16b8ab9 > > For continuous fuzzing on syzbot it usually means either (1) it's a > super narrow race or (2) it's a previous unnoticed memory

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-26 Thread Dmitry Vyukov
On Thu, Jun 25, 2020 at 11:02 PM J. Bruce Fields wrote: > > On Thu, Jun 04, 2020 at 11:53:59AM +0800, Hillf Danton wrote: > > > > > > On Wed, 3 Jun 2020 12:48:49 -0400 J. Bruce Fields wrote: > > > > On Wed, Jun 03, 2020 at 10:43:26AM -0400, J. Bruce Fields wrote: > > > > > On Wed, Jun 03, 2020 at

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-25 Thread J. Bruce Fields
On Thu, Jun 04, 2020 at 05:58:12PM -0400, J. Bruce Fields wrote: > On Thu, Jun 04, 2020 at 11:53:59AM +0800, Hillf Danton wrote: > > > > On Wed, 3 Jun 2020 12:48:49 -0400 J. Bruce Fields wrote: > > > On Wed, Jun 03, 2020 at 10:43:26AM -0400, J. Bruce Fields wrote: > > > > On Wed, Jun 03, 2020 at 1

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-04 Thread J. Bruce Fields
On Thu, Jun 04, 2020 at 11:53:59AM +0800, Hillf Danton wrote: > > On Wed, 3 Jun 2020 12:48:49 -0400 J. Bruce Fields wrote: > > On Wed, Jun 03, 2020 at 10:43:26AM -0400, J. Bruce Fields wrote: > > > On Wed, Jun 03, 2020 at 12:34:35PM +0800, Hillf Danton wrote: > > > > > > > > On Tue, 2 Jun 2020 17

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-03 Thread J. Bruce Fields
On Wed, Jun 03, 2020 at 10:43:26AM -0400, J. Bruce Fields wrote: > On Wed, Jun 03, 2020 at 12:34:35PM +0800, Hillf Danton wrote: > > > > On Tue, 2 Jun 2020 17:55:17 -0400 "J. Bruce Fields" wrote: > > > > > > As far as I know, this one's still unresolved. I can't see the bug from > > > code inspe

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-03 Thread J. Bruce Fields
On Wed, Jun 03, 2020 at 12:34:35PM +0800, Hillf Danton wrote: > > On Tue, 2 Jun 2020 17:55:17 -0400 "J. Bruce Fields" wrote: > > > > As far as I know, this one's still unresolved. I can't see the bug from > > code inspection, and we don't have a reproducer. If anyone else sees > > this or has a

Re: BUG: unable to handle kernel paging request in rb_erase

2020-06-02 Thread J. Bruce Fields
As far as I know, this one's still unresolved. I can't see the bug from code inspection, and we don't have a reproducer. If anyone else sees this or has an idea what might be going wrong, I'd be interested.--b. On Sun, May 17, 2020 at 11:59:12PM -0700, syzbot wrote: > Hello, > > syzbot found th

BUG: unable to handle kernel paging request in rb_erase

2020-05-17 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:9b1f2cbd Merge tag 'clk-fixes-for-linus' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15dfdeaa10 kernel config: https://syzkaller.appspot.com/x/.config?x=c14212794ed9ad24 das