On Wed, Jan 08, 2020 at 03:55:53PM +0100, Paolo Bonzini wrote: > Peter Lieven noticed that reqs->overlap_offset and reqs->overlap_bytes > are written outside bs->reqs_lock. Patch 3 fixes it, while patches 1 > and 2 are preparatory cleanups. > > v1->v2: fix comment in patch 2, commit message in patch 3 [Kevin] > > Paolo Bonzini (3): > block: eliminate BDRV_REQ_NO_SERIALISING > block/io: wait for serialising requests when a request becomes > serialising > block/io: take bs->reqs_lock in bdrv_mark_request_serialising > > block/file-posix.c | 1 - > block/io.c | 162 > +++++++++++++++++++++++----------------------- > include/block/block.h | 12 ---- > include/block/block_int.h | 3 +- > 4 files changed, 81 insertions(+), 97 deletions(-)
Is it possible to trigger the bug somehow? Can you implement a test case? Thanks, applied to my block tree: https://github.com/stefanha/qemu/commits/block Stefan
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