Am Thu, 02 Aug 2012 17:29:01 +0300 schrieb Artem Bityutskiy <artem.bityuts...@linux.intel.com>:
> On Thu, 2012-08-02 at 16:15 +0200, Richard Weinberger wrote: > > > If I understand correctly, it can be only because of a bug. If I > > > am correct, could you please add a 'dump_stack()' to improve the > > > error report? > > > > > > > This can happen if all PEBs are used and fastmap is unable to find > > (or produce) an empty one. > > In which situations is this possible? Could you please give an > example? > Every time fastmap writes a new fastmap to the flash it tries to get a new PEB and returns the old one (used for the old fastmap) back to the WL sub-system. If no free PEBs are available (E.g Volume is full or the erase worker is too slow) ubi_wl_get_fm_peb() returns NULL and fastmap reuses the currently used PEB. In this situation ubi_wl_get_fm_peb() may trigger such an error message. If think we should get rid of the message as this is not an error condition. It's a well known execution path. The only bad thing that happens in such a situation is that a PEB gets reused. BTW: Which version of fastmap are you testing? Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/