Qu Wenruo 76d2a0e5f9 btrfs-progs: tests: do not use async discard for misc/004 ... [BUG] There is a long existing failure in my local VM that with any newer kernel (6.x) the test case misc/004 would fail with ENOSPC during balance: [TEST] misc-tests.sh [TEST/misc] 004-shrink-fs failed: /home/adam/btrfs-progs/btrfs balance start -mconvert=single -sconvert=single -f /home/adam/btrfs-progs/tests/mnt test failed for case 004-shrink-fs make: *** [Makefile:547: test-misc] Error 1 [CAUSE] With more testing, it turns out that just before the balance, the filesystem still have several empty data block groups. The reason is the new default discard=async behavior, as it also changes the empty block groups to be async, this leave the empty block groups there, resulting no extra space for the convert balance. [FIX] I do not understand why for loop block devices we also enable discard, but at least disable discard for the test case so that we can ensure the empty block groups get cleaned up properly. Pull-request: #809 Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2024-06-24 19:17:45 +02:00
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test.sh	btrfs-progs: tests: do not use async discard for misc/004	2024-06-24 19:17:45 +02:00