On 10/08/2018 08:43 AM, Qu Wenruo wrote: > > > On 2018/10/5 下午6:58, Hans van Kranenburg wrote: >> On 10/05/2018 09:51 AM, Qu Wenruo wrote: >>> >>> >>> On 2018/10/5 上午5:24, Hans van Kranenburg wrote: >>>> This patch set contains an additional fix for a newly exposed bug after >>>> the previous attempt to fix a chunk allocator bug for new DUP chunks: >>>> >>>> https://lore.kernel.org/linux-btrfs/782f6000-30c0-0085-abd2-74ec5827c...@mendix.com/T/#m609ccb5d32998e8ba5cfa9901c1ab56a38a6f374 >>> >>> For that bug, did you succeeded in reproducing the bug? >> >> Yes, open the above link and scroll to "Steps to reproduce". > > That's beyond device boundary one. Also reproduced here. > And hand-crafted a super small image as test case for btrfs-progs. > > But I'm a little curious about the dev extent overlapping case. > Have you got one?
Ah ok, I see. No, I didn't do that yet. By using unmodified tooling, I think this can be done by a combination of a few resizings and using very specific balance to cause a fs of exactly 7880MiB again with a single 1578MiB gap inside... I'll try later today to see if I can come up with a recipe for this. -- Hans van Kranenburg
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