On 12/09/11 21:36, Jonathan Nieder wrote: > That's the theory, but if Thibault has to use the power button to > reboot to recover, then something's going wrong, no? > > Anyway, it seems it's time to take this upstream. Thibault, could you > send a summary of findings so far (i.e., what the state is like when > closing the lid, problem only shows up with CONFIG_LOCKUP_DETECTOR=y, > the nolapic kernel parameter works around it, whatever logs it was > possible to get of what happens until the lid closes, and an acpidump) > to the linux-a...@vger.kernel.org list (no subscription needed, since > the convention is to always reply-to-all), cc-ing this bug log? > > Sorry for the trouble, and good luck. >
Hello, I tried to get a kernel dump with kdump/kexec to have something I could work on, but no success. The kernel hangs and doesn't reboot on the crash kernel. Disabling SMP solves the problem too (it is required for kdump, but SMP can be enabled if you tell kdump to use one cpu), I feel a little bit discouraged. Since I can't find any pertinent similar problem (they are either too old or with no answer, or both) I begin to believe this is a hardware problem on my laptop. I'll try to patch the BIOS someday. Fun fact : closing lid hangs the system, but after I have done a single suspend-to-ram, I can close the lid as much as I want without getting the system to hang... Thanks, -- Thibault Manlay
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