2016-04-05 16:34 GMT+01:00 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > On Tue, Apr 05, 2016 at 03:07:48PM +0100, Rui Salvaterra wrote: >> Hi, >> >> >> I apologise in advance if I've cc'ed too many/the wrong people/lists. >> >> Whenever I try to use zram with lz4, on my Power Mac G5 (tested with >> kernel 4.4.0-16-powerpc64-smp from Ubuntu 16.04 LTS), I get the >> following on my dmesg: >> >> [13150.675820] zram: Added device: zram0 >> [13150.704133] zram0: detected capacity change from 0 to 5131976704 >> [13150.715960] zram: Decompression failed! err=-1, page=0 >> [13150.716008] zram: Decompression failed! err=-1, page=0 >> [13150.716027] zram: Decompression failed! err=-1, page=0 >> [13150.716032] Buffer I/O error on dev zram0, logical block 0, async page read >> >> I believe Eunbong Song wrote a patch [1] to fix this (or a very >> identical) bug on MIPS, but it never got merged (maybe >> incorrect/incomplete?). Is there any hope of seeing this bug fixed? >> >> >> Thanks, >> >> Rui Salvaterra >> >> >> [1] http://comments.gmane.org/gmane.linux.kernel/1752745 > > For some reason it never got merged, sorry, I don't remember why. > > Have you tested this patch? If so, can you resend it with your > tested-by: line added to it? > > thanks, > > greg k-h Hi, Greg No, I haven't tested the patch at all. I want to do so, and fix if if necessary, but I still need to learn how to (meaning, I need to watch your "first kernel patch" presentation again). I'd love to get involved in kernel development, and this seems to be a good opportunity, if none of the kernel gods beat me to it (I may need a month, but then again nobody complained about this bug in almost two years). Thanks, Rui -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>