On 2/21/07, Thomas Renninger <trenn@xxxxxxx> wrote:
Hi, I like to ask for inclusion into stable series for these. The original patch from Dmitry can be found here: http://bugzilla.kernel.org/show_bug.cgi?id=7689 comment #64, #65. The reason is: - These patches fix a lot weird stuff on all recent HP nc/nx series laptop models. - The problem with the psmouse thing is, if you booted a broken kernel, rebooting a fixed one will still result in a broken system (things break (or get fixed) on shutdown and survive the reboot). Therefore the patch(es) should get into as much kernels as possible to avoid further confusions on bug reports... This test report shows the behavior nicely: http://bugzilla.kernel.org/show_bug.cgi?id=7689#c45: 1-Boot in good state with original kernel 2-Reboot going in bad state with original kernel 3-Reboot with 2.6.20 patched kernel->still in bad state 4-Reboot with 2.6.20 patched kernel->going in good state: battery reporting ok, cpufreq working and go to full speed. 5-reboot with original Fedora kernel->still in *good* state 6-reboot going in bad state The symptoms of breakages are (because of wrong EC reads/writes) very different, depending on the laptop model: - Cannot reach highest freq on (all?) HP Intel Dual core machines This is the only 100% reproducable bug I saw... - Shutdowns because of critical temperature (e.g. showing 1200 C) HP NX 9420 shutting down on huge, bogus thermal temperature values https://bugzilla.novell.com/show_bug.cgi?id=234475 - There are probably a lot other bug reports out there that will lead to this problem... These are patches against the plain 2.6.19 kernel (not stable .X, I hope nothing changed at these specific files..., if there changed something I can resubmit). As we are using these in SLE10 SP1, I did the backports back to 2.6.16 and will send more if I get your ok for that. Dmitry (or others), can you please review. I had to fiddle a bit on each kernel version. I did a compile test on x86_64 (CONFIG_PM on) and powerpc (CONFIG_PM off). And I verified 2.6.20 (original) and 2.6.16 working with s2disk and s2ram. Still I could have done a little typo/mistake somewhere...
Hi Thomas, The patches look good, however I believe that only psmouse patch is enough to fix the issues you referring to in your mail (I don't have a box that exibits these symptoms so I can't verify). The second patch, while useful, should not be included in stable series unless the first patch alone does not work. -- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
