Re: 2.6.16-rc5-mm3 -- BUG: sleeping function called from invalid context at include/linux/rwsem.h:43 in_atomic():0, irqs_disabled():1

["Miles Lane" <miles.lane@gmail.com>]

On 3/9/06, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Thursday 09 March 2006 11:32, Andrew Morton wrote:
> > "Miles Lane" <miles.lane@gmail.com> wrote:
> > >
> > > Apologies.  This bug caused my video to get messed up.  I was able to
> > > run Gnome, but the apps weren't rendering correctly, so I couldn't be
> > > sure my subject line was correct.
> > > I would have edited out some of the context info, but that was tough
> > > as well.  Here's the BUG message by itself.  Perhaps all the dmesg
> > > output in the previous message will be helpful.
> > > As you can see in the dmesg output, I hit this by suspending and
> > > resuming.  I am running Fedora Core 5 Test 3 + all yum updates.
> > > Andrew, the full dmesg output is in the LKML message with the subject
> > > line set to "v".  Let me know if you would like me to send it directly
> > > to you.
> > >
> > > BUG: sleeping function called from invalid context at include/linux/rwsem.h:43
> > > in_atomic():0, irqs_disabled():1
> > >  <c1003f81> show_trace+0xd/0xf   <c100401b> dump_stack+0x17/0x19
> > >  <c1015f77> __might_sleep+0x86/0x90   <c1024738>
> > > blocking_notifier_call_chain+0x1b/0x4d
> > >  <c1183bb2> cpufreq_resume+0xf5/0x11d   <c112b27c> __sysdev_resume+0x23/0x57
> > >  <c112b3c9> sysdev_resume+0x19/0x4b   <c112f736> device_power_up+0x8/0xf
> > >  <c1033339> swsusp_suspend+0x6e/0x8b   <c1033918> pm_suspend_disk+0x51/0xf3
> > >  <c10328c7> enter_state+0x53/0x1c1   <c1032abe> state_store+0x89/0x97
> > >  <c108af00> subsys_attr_store+0x20/0x25   <c108b020> sysfs_write_file+0xb5/0xdc
> > >  <c1056578> vfs_write+0xab/0x154   <c1056aa3> sys_write+0x3b/0x60
> > >  <c1002b43> syscall_call+0x7/0xb
> > > PM: Image restored success
> >
> > ho-hum.  That's swsusp insisting on running things which it shouldn't run
> > with local interrupts disabled.
>
> Well, there seems to be a bug in  cpufreq_resume which should not call
> sleeping functions, because it's called with irqs disabled.

# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=m
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m

#
# CPUFreq processor drivers
#
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_SPEEDSTEP_CENTRINO=y
CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
CONFIG_X86_SPEEDSTEP_ICH=y
CONFIG_X86_SPEEDSTEP_SMI=y
CONFIG_X86_P4_CLOCKMOD=y