> Patch 0500-block-raw-posix-Try-both-FIEMAP-and-SEEK_HOLE.patch appears to be > part of a bigger re-write > of the related code. and is ON TOP of the patches already applied in this bug.
Yep, sorry for not mentioning this. As far as I understand qemu-2.1 package contains this partially rewritten code too (without any recent changes like disabling FIEMAP completely and rewriting the code using SEEK_HOLE). > No doubt the rewirtten code is "better" but backporting it contains more risk than the 2 simple fixes I already nominated. Can we completely disable the FIEMAP code and pretend that all blocks are allocated? I'm afraid fsync'ing 100+ GB files might be even slower than ignoring the sparseness. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1368815 Title: qemu-img convert intermittently corrupts output images To manage notifications about this bug go to: https://bugs.launchpad.net/cinder/+bug/1368815/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
