2009/9/1 Zdenek Kabelac <zdenek.kabelac@xxxxxxxxx>: > 2009/8/31 Rafael J. Wysocki <rjw@xxxxxxx>: >> On Monday 31 August 2009, Zdenek Kabelac wrote: >>> Hi >>> >>> I've noticed that my machine freezes while doing s2r and having >>> mounted filesystem from SD card. >>> >>> My system: Lenovo T61, 4GB, C2D, kernel 2.6.31-rc8 >>> >>> Here is the trace of suspend when SD card is inserted, follows resume >>> and again suspend and this time with mounted filesystem from SD card. >>> >>> System locks with: PM: Removing info for mmc:mmc0:b368 >>> Also btusb_bulk_complete: errors are interesting - I've noticed few >>> bugzillas in the google. >>> I could try bisect to find the patch - but it will take time.... >>> So hopefully this trace will help. >> >> Not really. :-( >> >> Is this a new regression in 2.6.31-rc, or does 2.6.30 also fail? >> > > Well - all I know for now is this: v2.6.30 goes to suspend (i.e. > machine turns to sleep), but resume fails - I do not get a single line > of output on serial console either - so it's hard to tell whether it > works or not - before suspend there are some INFO traces about lockdep > problems in cpu frequency. v2.6.31-rc1 doesn't boot on my machine. > v2.6.31-rc2 seems to lock on suspend so this version is already > definitely broken. I may try to do some bisecting between these > kernels - but it might probably easily lead to some dead-ends probably > :(... > Also I'm using mmc debugs for compilation of these kernels - but > nothing seems to printed from mmc subsystem at the end of suspend log > and the end is still the same - last printed lines: > > mmc0: card b368 removed > PM: Removing info for mmc:mmc0:b368 > Ok - another bisect game played - and unexpected winner is: (fat: add ->sync_fs) f83d6d46e7adf241a064a4a425e5cd8a8fd8925f Reverting this commit with current -rc8 kernel makes the system happy during the suspend/resume cycle. Obviously it has it price :) so just plain revert is probably not a good solution so the problem looks 'more serious' (fat is not the only fs with this patch) thus adding original author to this thread. Zdenek -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
