* option driver freezing entire system
@ 2010-01-15 17:38 Kasper Sandberg
2010-01-15 17:55 ` Oliver Neukum
0 siblings, 1 reply; 6+ messages in thread
From: Kasper Sandberg @ 2010-01-15 17:38 UTC (permalink / raw)
To: smurf; +Cc: LKML Mailinglist
Hello..
Im having some issues with some huawei e1752 modems, the computer
sometimes completely freezes, and i suspect its due to the option
driver, as it doesnt happen if i dont modeswitch them to appear as
option modem.
Do you have any idea what might cause this? i looked all over the system
logs and theres nothing to help at all, but i have seen this spanning
from .26 to .32, on multiple computers, and i just dont know what to do
to fix it.
Thanks in advance
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: option driver freezing entire system
2010-01-15 17:38 option driver freezing entire system Kasper Sandberg
@ 2010-01-15 17:55 ` Oliver Neukum
2010-01-15 18:36 ` Kasper Sandberg
0 siblings, 1 reply; 6+ messages in thread
From: Oliver Neukum @ 2010-01-15 17:55 UTC (permalink / raw)
To: Kasper Sandberg; +Cc: smurf, LKML Mailinglist
Am Freitag, 15. Januar 2010 18:38:36 schrieb Kasper Sandberg:
> Hello..
>
> Im having some issues with some huawei e1752 modems, the computer
> sometimes completely freezes, and i suspect its due to the option
> driver, as it doesnt happen if i dont modeswitch them to appear as
> option modem.
>
> Do you have any idea what might cause this? i looked all over the system
> logs and theres nothing to help at all, but i have seen this spanning
> from .26 to .32, on multiple computers, and i just dont know what to do
> to fix it.
Please recompile your kernel with lockdep. This should improve
debugging.
Regards
Oliver
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: option driver freezing entire system
2010-01-15 17:55 ` Oliver Neukum
@ 2010-01-15 18:36 ` Kasper Sandberg
2010-01-18 15:57 ` Jiri Kosina
0 siblings, 1 reply; 6+ messages in thread
From: Kasper Sandberg @ 2010-01-15 18:36 UTC (permalink / raw)
To: Oliver Neukum; +Cc: smurf, LKML Mailinglist
On Fri, 2010-01-15 at 18:55 +0100, Oliver Neukum wrote:
> Am Freitag, 15. Januar 2010 18:38:36 schrieb Kasper Sandberg:
> > Hello..
> >
> > Im having some issues with some huawei e1752 modems, the computer
> > sometimes completely freezes, and i suspect its due to the option
> > driver, as it doesnt happen if i dont modeswitch them to appear as
> > option modem.
> >
> > Do you have any idea what might cause this? i looked all over the system
> > logs and theres nothing to help at all, but i have seen this spanning
> > from .26 to .32, on multiple computers, and i just dont know what to do
> > to fix it.
>
> Please recompile your kernel with lockdep. This should improve
> debugging.
It is a debian unstable .32 kernel i run now, and grepping for lockdep
reveals:
CONFIG_LOCKDEP_SUPPORT=y
only, is there anything more i should have? (never used lockdep before)
>
> Regards
> Oliver
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: option driver freezing entire system
2010-01-15 18:36 ` Kasper Sandberg
@ 2010-01-18 15:57 ` Jiri Kosina
2010-01-22 19:11 ` Kasper Sandberg
0 siblings, 1 reply; 6+ messages in thread
From: Jiri Kosina @ 2010-01-18 15:57 UTC (permalink / raw)
To: Kasper Sandberg; +Cc: Oliver Neukum, smurf, LKML Mailinglist
On Fri, 15 Jan 2010, Kasper Sandberg wrote:
> > Please recompile your kernel with lockdep. This should improve
> > debugging.
>
> It is a debian unstable .32 kernel i run now, and grepping for lockdep
> reveals:
> CONFIG_LOCKDEP_SUPPORT=y
> only, is there anything more i should have? (never used lockdep before)
CONFIG_PROVE_LOCKING could be helpful here. (be aware of the fact that
this will make your system noticeably slower).
--
Jiri Kosina
SUSE Labs, Novell Inc.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: option driver freezing entire system
2010-01-18 15:57 ` Jiri Kosina
@ 2010-01-22 19:11 ` Kasper Sandberg
2010-01-26 12:51 ` Jiri Kosina
0 siblings, 1 reply; 6+ messages in thread
From: Kasper Sandberg @ 2010-01-22 19:11 UTC (permalink / raw)
To: Jiri Kosina; +Cc: Oliver Neukum, smurf, LKML Mailinglist
On Mon, 2010-01-18 at 16:57 +0100, Jiri Kosina wrote:
> On Fri, 15 Jan 2010, Kasper Sandberg wrote:
>
> > > Please recompile your kernel with lockdep. This should improve
> > > debugging.
> >
> > It is a debian unstable .32 kernel i run now, and grepping for lockdep
> > reveals:
> > CONFIG_LOCKDEP_SUPPORT=y
> > only, is there anything more i should have? (never used lockdep before)
>
> CONFIG_PROVE_LOCKING could be helpful here. (be aware of the fact that
> this will make your system noticeably slower).
Sorry, i was just away a few days. I shall enable this setting tomorow
and test, though it may take a few days for it to crash.
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: option driver freezing entire system
2010-01-22 19:11 ` Kasper Sandberg
@ 2010-01-26 12:51 ` Jiri Kosina
0 siblings, 0 replies; 6+ messages in thread
From: Jiri Kosina @ 2010-01-26 12:51 UTC (permalink / raw)
To: Kasper Sandberg; +Cc: Oliver Neukum, smurf, LKML Mailinglist
On Fri, 22 Jan 2010, Kasper Sandberg wrote:
> > > > Please recompile your kernel with lockdep. This should improve
> > > > debugging.
> > >
> > > It is a debian unstable .32 kernel i run now, and grepping for lockdep
> > > reveals:
> > > CONFIG_LOCKDEP_SUPPORT=y
> > > only, is there anything more i should have? (never used lockdep before)
> >
> > CONFIG_PROVE_LOCKING could be helpful here. (be aware of the fact that
> > this will make your system noticeably slower).
>
> Sorry, i was just away a few days. I shall enable this setting tomorow
> and test, though it may take a few days for it to crash.
This option should ideally report the lock ordering violation before the
actual hang happens (if it is caused by improper locking semantics).
--
Jiri Kosina
SUSE Labs, Novell Inc.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-01-26 12:51 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-01-15 17:38 option driver freezing entire system Kasper Sandberg
2010-01-15 17:55 ` Oliver Neukum
2010-01-15 18:36 ` Kasper Sandberg
2010-01-18 15:57 ` Jiri Kosina
2010-01-22 19:11 ` Kasper Sandberg
2010-01-26 12:51 ` Jiri Kosina
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