Hello, On Mon, Aug 19, 2013 at 12:13:02PM +0800, Michael wang wrote: > Hi, Mitch > > On 08/17/2013 10:01 PM, Mitch Harder wrote: > > I'm encountering a BUG while using a ZRAM Swap device. > > > > The call trace seems to involve the changes recently added to 3.10.6 > > by the patch: > > zram: use zram->lock to protect zram_free_page() in swap free notify path > > > > The hardware is a x86 single CPU AMD Athlon XP system with 1GB RAM. > > > > I'm implementing a 352MB ZRAM swap device, and also have 1GB swap > > space on the hard disk. > > IMHO, it was caused by that swap_entry_free() was invoked with page > spin-locked, thus zram_slot_free_notify() should not use rw-lock which > may goto sleep. > > CC folks related. Thanks for Ccing me, Michael, Mitch, It's known problem and it should be fixed by [1] in recent linux-next. [1] a0c516cbfc, zram: don't grab mutex in zram_slot_free_noity Thanks for the report! > > Regards, > Michael Wang -- Kind regards, Minchan Kim _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
