On 03/22, James Bottomley wrote:
>
> OK, the fix from the SCSI point of view is to make the mpt teardown path
> actually work. The whole thing looks to be a complete mess because
> there's another place where it will do the wrong thing in
> mptscsih_remove(). You always have to call mpt_detach()
On Sun, 2014-03-23 at 15:28 +0100, Thomas Gleixner wrote:
> On Sun, 23 Mar 2014, James Bottomley wrote:
> > On Sun, 2014-03-23 at 09:04 +0100, Thomas Gleixner wrote:
> > > On Sun, 23 Mar 2014, Tetsuo Handa wrote:
> > >
> > > > Thomas Gleixner wrote:
> > > > > But then systemd/udev mutters:
> > > >
On Sun, 23 Mar 2014, James Bottomley wrote:
> On Sun, 2014-03-23 at 09:04 +0100, Thomas Gleixner wrote:
> > On Sun, 23 Mar 2014, Tetsuo Handa wrote:
> >
> > > Thomas Gleixner wrote:
> > > > But then systemd/udev mutters:
> > > >
> > > >"You migh be able to work around the timeout with udev ru
On Sun, 2014-03-23 at 09:04 +0100, Thomas Gleixner wrote:
> On Sun, 23 Mar 2014, Tetsuo Handa wrote:
>
> > Thomas Gleixner wrote:
> > > But then systemd/udev mutters:
> > >
> > >"You migh be able to work around the timeout with udev rules and
> > > OPTIONS+="event_timeout=120", but that c
On Sun, 23 Mar 2014, Tetsuo Handa wrote:
> Thomas Gleixner wrote:
> > But then systemd/udev mutters:
> >
> >"You migh be able to work around the timeout with udev rules and
> > OPTIONS+="event_timeout=120", but that code was maybe never used
> > or tested, so it might not work correct
Thomas Gleixner wrote:
> But then systemd/udev mutters:
>
>"You migh be able to work around the timeout with udev rules and
> OPTIONS+="event_timeout=120", but that code was maybe never used
> or tested, so it might not work correctly." [1]
>
> AFAICT from the ubuntu bug system [2] no
Oleg Nesterov wrote:
> On 03/22, Tetsuo Handa wrote:
> >
> > Oleg Nesterov wrote:
> > > Tetsuo, what do you think?
> >
> > I don't like blocking SIGKILL while doing operations that depend on memory
> > allocation by other processes. If the OOM killer is triggered and it chose
> > the process blocki
On Sat, 22 Mar 2014, Thomas Gleixner wrote:
> On Sat, 22 Mar 2014, Oleg Nesterov wrote:
> > Personally I dislike this change. In fact I think it is ugly. But this
> > is only my opinion.
>
> It's not only ugly, it's activly wrong. It's as wrong as 786235ee
> itself. And 786235ee needs to be revert
On Sat, 22 Mar 2014, Oleg Nesterov wrote:
> On 03/22, Tetsuo Handa wrote:
> > Many kernel operations (e.g. mutex_lock() wait_event()
> > wait_for_completion())
> > ignore SIGKILL and the current users depend on SIGKILL being ignored. Thus,
> > commit 786235ee sounds like a kernel API breakage.
>
On Sat, 2014-03-22 at 20:25 +0100, Oleg Nesterov wrote:
> On 03/22, Tetsuo Handa wrote:
> >
> > Oleg Nesterov wrote:
> > > Tetsuo, what do you think?
> >
> > I don't like blocking SIGKILL while doing operations that depend on memory
> > allocation by other processes. If the OOM killer is triggered
On 03/22, Tetsuo Handa wrote:
>
> Oleg Nesterov wrote:
> > Tetsuo, what do you think?
>
> I don't like blocking SIGKILL while doing operations that depend on memory
> allocation by other processes. If the OOM killer is triggered and it chose
> the process blocking SIGKILL in mptsas_init() (I know i
Oleg Nesterov wrote:
> Tetsuo, what do you think?
I don't like blocking SIGKILL while doing operations that depend on memory
allocation by other processes. If the OOM killer is triggered and it chose
the process blocking SIGKILL in mptsas_init() (I know it unlikely happens),
it generates the OOM k
On Fri, 2014-03-21 at 12:32 -0700, Linus Torvalds wrote:
> On Fri, Mar 21, 2014 at 11:34 AM, Oleg Nesterov wrote:
> >
> > Yes, it seems that it actually needs > 30 secs. It spends most of the time
> > (30.13286 seconds) in [..]
>
> So how about taking a completely different approach:
>
> - just
On 03/21, Linus Torvalds wrote:
>
> On Fri, Mar 21, 2014 at 11:34 AM, Oleg Nesterov wrote:
> >
> > Yes, it seems that it actually needs > 30 secs. It spends most of the time
> > (30.13286 seconds) in [..]
>
> So how about taking a completely different approach:
Due to the lack of knowledge I can
On Fri, Mar 21, 2014 at 11:34 AM, Oleg Nesterov wrote:
>
> Yes, it seems that it actually needs > 30 secs. It spends most of the time
> (30.13286 seconds) in [..]
So how about taking a completely different approach:
- just say that waiting for devices in the module init sequence for
over 30 sec
On 03/20, Oleg Nesterov wrote:
>
> On 03/20, Joseph Salisbury wrote:
> >
> > There was some testing done with your test kernel. The data collected
> > while running your kernel is available in the bug report:
> > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1276705/comments/58
>
> Joseph,
On 03/20, Joseph Salisbury wrote:
>
> On 03/19/2014 03:42 PM, Oleg Nesterov wrote:
> > On 03/19, Oleg Nesterov wrote:
> >> On 03/19, Oleg Nesterov wrote:
> >>> But please do not forget that the kernel crashes. Whatever else we do,
> >>> this
> >>> should be fixed anyway. And this should be fixed i
On 03/19/2014 03:42 PM, Oleg Nesterov wrote:
> On 03/19, Oleg Nesterov wrote:
>> On 03/19, Oleg Nesterov wrote:
>>> But please do not forget that the kernel crashes. Whatever else we do, this
>>> should be fixed anyway. And this should be fixed in driver.
>> drivers/message/fusion/ is obviously bug
On 03/19/2014 03:42 PM, Oleg Nesterov wrote:
> On 03/19, Oleg Nesterov wrote:
>> On 03/19, Oleg Nesterov wrote:
>>> But please do not forget that the kernel crashes. Whatever else we do, this
>>> should be fixed anyway. And this should be fixed in driver.
>> drivers/message/fusion/ is obviously bug
On 03/19, Oleg Nesterov wrote:
>
> On 03/19, Oleg Nesterov wrote:
> >
> > But please do not forget that the kernel crashes. Whatever else we do, this
> > should be fixed anyway. And this should be fixed in driver.
>
> drivers/message/fusion/ is obviously buggy.
Perhaps this is the only problem and
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