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[Jürg Häfliger <1783880@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1783880

Title:
  ltp-syscalls: fallocate05 fails with btrfs on ppc64el

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Cosmic:
  Won't Fix

Bug description:
  This affects at least bionic and cosmic proposed kernels.

  This affects only ppc64el. My guess is the reason is the page size. In
  fact, changing the fallocate size to 64KiB, the test works.

  tst_test.c:1079: INFO: Testing on btrfs
  tst_mkfs.c:83: INFO: Formatting /dev/loop1 with btrfs opts='' extra opts=''
  tst_test.c:1018: INFO: Timeout per run is 0h 05m 00s
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file0 size 21710183
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file1 size 8070086
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file2 size 3971177
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file3 size 36915315
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file4 size 70310993
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file5 size 4807935
  tst_fill_fs.c:41: INFO: Creating file mntpoint/file6 size 90739786
  tst_fill_fs.c:61: INFO: write(): ENOSPC
  fallocate05.c:62: PASS: write() wrote 32768 bytes
  fallocate05.c:71: PASS: fallocate() on full FS: ENOSPC
  fallocate05.c:78: BROK: fallocate(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE): ENOSPC

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