fallocate05 from ltp-syscalls fails on H-azure

[Krzysztof Kozlowski]

Found on hirsute/azure 5.11.0-1007.7 and 5.11.0-1006.6. might be re-appearance of lp:1783880, btrfs file system, only on Azure instance Standard_F32s_v2:

tst_test.c:1379: TINFO: Testing on btrfs
tst_test.c:888: TINFO: Formatting /dev/loop3 with btrfs opts='' extra opts=''
tst_test.c:1311: TINFO: Timeout per run is 0h 05m 00s
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file0 size 21710183
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file1 size 8070086
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file2 size 3971177
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file3 size 36915315
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file4 size 70310993
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file5 size 4807935
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file6 size 90739786
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file7 size 76896492
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file8 size 72228649
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file9 size 36207821
tst_fill_fs.c:32: TINFO: Creating file mntpoint/file10 size 81483962
tst_fill_fs.c:59: TINFO: write(): ENOSPC (28)
fallocate05.c:81: TPASS: write() wrote 65536 bytes
fallocate05.c:102: TINFO: fallocate()d 0 extra blocks on full FS
fallocate05.c:114: TPASS: fallocate() on full FS
fallocate05.c:130: TPASS: fallocate(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)
fallocate05.c:134: TFAIL: write(): ENOSPC (28)

[Krzysztof Kozlowski (krzk)]

Only instance Standard_F32s_v2 (not reproducible on Standard_B4ms) and only Hirsute v5.11 (not reproducible Focal v5.8). I could not find the cause of failure.

[Po-Hsu Lin (cypressyew)]

Similar issue lp:1929816

[Krzysztof Kozlowski (krzk)]

Still not reproducible on Focal v5.8 but reproduced on focal/azure-5.11. Details:
Standard_F32s_v2, focal/azure-5.11 v5.11 5.11.0-1007-azure - FAIL
Standard_F32s_v2, focal/hwe-5.11 5.11.0-22-generic - FAIL
Standard_F32s_v2, focal/mainline-5.13 5.13.0-051300-generic - FAIL
Standard_F64s_v2, focal/azure-5.11 v5.11 5.11.0-1007-azure - FAIL

Standard_F4s_v2, focal/azure-5.11 v5.11 5.11.0-1007-azure - PASS
Standard_F16s_v2, focal/azure-5.11 v5.11 5.11.0-1007-azure - PASS
Standard_F48s_v2, focal/azure-5.11 v5.11 5.11.0-1007-azure - PASS

Standard_D32s_v3, focal/azure-5.11 v5.11 5.11.0-1007-azure - FAIL
Standard_E32s_v3, focal/azure-5.11 v5.11 5.11.0-1007-azure - FAIL

[Krzysztof Kozlowski (krzk)]

Fails also on AWS m5.8xlarge and m5.16xlarge (focal/aws-5.11, 32 and 64 cores).

[Krzysztof Kozlowski (krzk)]

Reproduced also on QEMU with 32 or 64 CPUs, but not with 31 CPUs (focal/hwe-5.11 and mainline v5.13). Fixed by branch 'delalloc-shrink' of https://github.com/josefbacik/linux.

[Brian Murray (brian-murray)]

The Hirsute Hippo has reached End of Life, so this bug will not be fixed for that release.

[Po-Hsu Lin (cypressyew)]

This issue does not exist in our database. And the kernels are EOL.