On Thu, 2 Apr 2015 17:28:05 +0200 Pavel Machek <[email protected]> wrote: > On Wed 2015-04-01 21:47:43, rhn wrote: > > Hello, > > > > Between kernel 3.16 and 3.17, a regression has been introduced where the > > first hibernation after regular shutdown always fails to resume. Subsequent > > hibernations succeed. > > > > The system is a Lenovo x230 with Intel i5, booting with EFI, with the > > hibernate partition located on a secondary SSD drive. Installed system is > > Fedora 20, hibernation and reboots were issued using the KDE shutdown > > dialog. > > > > I have tracked the problem to first appear in the commit > > e67ee10190e69332f929bdd6594a312363321a66 Merge branches 'pm-sleep', > > 'pm-cpufreq' and 'pm-cpuidle' > > > > The problem itself manifests in dmesg as follows (system was first > > restarted, then hibernated - this log is from the subsequent > resume): > > Ok, can you try to disable cpufreq and cpuidle, and then try if it > reproduces? > > At that point, this is the candidate: > > commit e67ee10190e69332f929bdd6594a312363321a66 > Merge: 21c806d 84c91b7 39c8bba 372ba8c > Author: Rafael J. Wysocki <[email protected]> > Date: Mon Aug 11 23:19:48 2014 +0200 > > Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle' > > * pm-sleep: > PM / hibernate: avoid unsafe pages in e820 reserved regions > > ... > Alternatively, you can just try to revert > > commit 84c91b7ae07c62cf6dee7fde3277f4be21331f85 > Author: Lee, Chun-Yi <[email protected]> > Date: Mon Aug 4 23:23:21 2014 +0800 > > PM / hibernate: avoid unsafe pages in e820 reserved regions > > When the machine doesn't well handle the e820 persistent when > hibernate > resuming, then it may cause page fault when writing image to > snapshot > buffer: > > > ... > > Thanks, > Pavel
I tried to disable CONFIG_CPU_IDLE and CONFIG_CPU_FREQ, however for some reason I could only disable CONFIG_CPU_FREQ. The bug persisted. Reverting the commit 84c91b7 on top of e67ee10 fixes the problem. I created a copy of the bug report here: https://bugzilla.kernel.org/show_bug.cgi?id=96111 Cheers, rhn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
