Re: 2.6.13-mm1: PCMCIA problem

[Rafael J. Wysocki]

On Friday, 2 of September 2005 10:30, Rafael J. Wysocki wrote:
> On Thursday, 1 of September 2005 23:28, Andrew Morton wrote:
> > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote:
> > >
> > > On Thursday, 1 of September 2005 12:55, Andrew Morton wrote:
> > > > 
> > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.13/2.6.13-mm1/
> > > 
> > > I cannot start PCMCIA on x86-64 SuSE 9.3 on Asus L5D.  Apparently, the following
> > > command:
> > > 
> > > sh -c modprobe --ignore-install firmware_class; echo 30 > /sys/class/firmware/timeout
> > > 
> > > loops forever with almost 100% of the time spent in the kernel.
> > > 
> > > AFAICS, 2.6.13-rc6-mm2 is also affected, but the mainline kernels are not.
> > 
> > OK.  There are no notable firmware changes in there.  While it's stuck
> > could you generate a kernel profile?    I do:
> > 
> > readprofile -r
> > sleep 5
> > readprofile -n -v -m /boot/System.map | sort -n +2 | tail -40

]--snip--[

One more piece of information.  This is the one that loops:

echo 30 > /sys/class/firmware/timeout

and the related profile is:

    16 *unknown*
ffffffff8010eb38 sysret_check                                  1   0.0120
ffffffff80240b40 clear_page                                    1   0.0175
ffffffff80356397 bad_gs                                        1   0.0001
ffffffff80240cc0 copy_user_generic                             2   0.0067
ffffffff8010eb33 ret_from_sys_call                             6   1.2000
ffffffff80221870 dummy_file_permission                         7   0.4375
ffffffff80240c90 copy_from_user                                9   0.1875
ffffffff8023f5e0 simple_strtol                                11   0.2292
ffffffff8023f500 simple_strtoul                               17   0.0759
ffffffff802ac800 class_attr_store                             18   0.3750
ffffffff801bfc40 sysfs_write_file                             61   0.1658
ffffffff8017ead0 sys_write                                    78   0.5417
ffffffff8017df70 rw_verify_area                              143   1.1172
ffffffff80240dea copy_user_generic_c                         144   3.7895
ffffffff8010eab0 system_call                                 163   1.2443
ffffffff8017f1d0 fget_light                                  184   0.7667
ffffffff8017e890 vfs_write                                   209   0.5024
0000000000000000 total                                      1055   0.0004

Greetings,
Rafael


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