Messages in this thread | | | Date | Mon, 26 Mar 2007 12:32:18 +0800 | From | Nicolas Boichat <> | Subject | Re: [BUG] Patch "CPU hotplug: call check_tsc_sync_source() with irqs off" breaks some drivers |
| |
Nicolas Boichat wrote: > Hello, > > I'm running a Macbook Pro first generation (Core Duo, so x86). > > I ran accross these two problems while upgrading from 2.6.21-rc3 to the > current git HEAD: > 1. appletouch cannot initialize the device properly at boot time (the > module is automatically loaded by Gentoo), I have to reload the module > to get it to work. > 2. ALSA hda_intel (patch_sigmatel) fails to read properly the subsystem > id. "head /proc/asound/card0/codec#0" returns: >> Codec: SigmaTel STAC9221 A1 >> Address: 0 >> Vendor Id: 0x83847680 >> Subsystem Id: 0x100 >> Revision Id: 0x103401 > while I expect this subsystem id: 0x106b0200. > This is due to a read failure in sound/pci/hda/hda_codec.c at line 553 > (I have to reboot on OS X to get the id correct again, and it seems to > happen quite randomly, so I'm not absolutely certain this bug is > related, but it's something i have never seen before...) > > I found out which commit seems to cause these bugs: > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d04f41e35343f1d788551fd3f753f51794f4afcf > > The latest GIT without this commit works fine, but doesn't with it.
Sorry about blaming this commit. The problems happen randomly (about 1 reboot over 2 is ok, at least with 2.6.21-rc4). I'll run more tests and post the results later.
Best regards,
Nicolas
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |