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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [KBL] "enable_rc6" parameter deprecation brings back freezing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105962#c26">Comment # 26</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [KBL] "enable_rc6" parameter deprecation brings back freezing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105962">bug 105962</a>
from <span class="vcard"><a class="email" href="mailto:freedesktop.org@nospam.mooo.com" title="paulz <freedesktop.org@nospam.mooo.com>"> <span class="fn">paulz</span></a>
</span></b>
<pre>(In reply to Tomi Sarvela from <a href="show_bug.cgi?id=105962#c24">comment #24</a>)
<span class="quote">> If you see /sys/fs/pstore, then the feature is enabled and working.
>
> Next thing is to configure linux to write dmesg buffer to pstore when
> panicing, and the important thing is to panic. Add to command line:
>
> nmi_watchdog=panic,auto panic=5 softdog.soft_panic=5
>
> (5 on the command line means 5 seconds)
>
> Unfortunately, in many suspend/hang issues nothing gets written to pstore
> because CPU is not available. Pstore is a last resort thing, a bit like
> console: it might help, or it might stay silent.</span >
No it's not, EFI store is just mounted!
We have also have to load the module "efi_pstore" (CONFIG_PSTORE_RAM=m) and
maybe "ramoops" so i added it to /etc/modules!
Now there are dmesg-efi-* files in /sys/fs/pstore/ if i trigger a kernel crash!
now i am waiting for next freeze whithout disabling "rc6" (boot options: debug
ignore_loglevel drm.debug=0x1f nmi_watchdog=panic,auto panic=5
softdog.soft_panic=5)</pre>
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