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SubjectRe: [btrfs] 62bd8124e2: WARNING:at_fs/btrfs/block-rsv.c:#btrfs_release_global_block_rsv[btrfs]
hi, Filipe Manana,

On Thu, Jun 09, 2022 at 10:46:52AM +0100, Filipe Manana wrote:
>
> I am unable to reproduce that on a 12 cores box.
> I also don't see anything wrong that could lead to that by manual inspection.
>
> How easy is it for you to trigger it?

we reproduced this upon 62bd8124e2 4 times out of 6 runs.
but since the other 2 runs crash early due to other issues (below (1)), we
cannot say they are clean.
at the same time, the 6 runs for parent are clean.

7e2bb5b3f3bca223 62bd8124e2f17910fcd89568e50
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
:6 67% 4:6 dmesg.RIP:btrfs_release_global_block_rsv[btrfs]
:6 67% 4:6 dmesg.WARNING:at_fs/btrfs/block-rsv.c:#btrfs_release_global_block_rsv[btrfs]
:6 33% 2:6 dmesg.kernel_BUG_at_fs/xfs/xfs_message.c <----- (1)


>
> Can you also run it with CONFIG_BTRFS_ASSERT=y set in the kernel config?

got it, we will enable this config and rerun tests, for both this commit and
parent.

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