On Sat, May 9, 2015 at 9:28 PM, Matthew Miller <mattdm@xxxxxxxxxxxxxxxxx> wrote: > Okay, not to panic everyone too much, but: if you have an SD card with > a bunch of JPEG files on it, can you try copying files off in a loop to > see if you can recreate > https://bugzilla.redhat.com/show_bug.cgi?id=1220096? I haven't seen this. But I've had severe performance problems with kernel 4.0.0 and 4.0.1. Normally I get ~38MB/s off this SD card (Btrfs on LUKS file on HFS+ on sdcard, yes I'm trying to break shit), but with 4.0.0 and 4.0.1 I non-deterministically get almost complete stalls with less than 1MB/s transfers, including direct to the card so the other layers aren't a factor. But Btrfs reports no corruptions throughout, including doing full volume scrubs. But the performance was so bad, and I never got any sort of call trace or errors, so I just stopped using it rather than punish it and myself more. Today with 4.1.0-0.rc2.git0.1.fc23.x86_64 the problem isn't happening, I'm getting 38MB/s transfers. For now. -- Chris Murphy -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
