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Description of problem: xfstests 075 makes ext4 panic on s390x host, this only happens with 2048 or 1024 block size, 4096 block size can pass the test ext3 doesn't have this issue(4096&2048&1024 block size) Version-Release number of selected component (if applicable): I tried the following kernels: kernel-2.6.32-71.el6 kernel-2.6.32-131.0.15.el6 kernel-2.6.32-131.6.1.el6 kernel-2.6.32-171.el6 So not a regression How reproducible: 100% Steps to Reproduce: 1. yum install rh-tests-kernel-filesystems-xfs-xfstests -y 2. cd /mnt/tests/kernel/filesystems/xfs/xfstests; ./install_all.sh 3. TEST_PARAM_FSTYPE=ext4 TEST_PARAM_RUNTESTS=075 TEST_PARAM_BLKSIZE=2048 make run Actual results: Process fsx (pid: 2899, task: 000000001d000b90, ksp: 0000000001747360) 0000000001747578 00000000017474f8 0000000000000002 0000000000000000 0000000001747598 0000000001747510 0000000001747510 00000000004be880 0000000000000011 0000000000000000 0000000000000006 0000000000000008 000000000000000d 000000000000000c 0000000001747568 0000000000000000 0000000000000000 000000000010512c 00000000017474f8 0000000001747538 Call Trace: (Ý<000000000010502c>¨ show_trace+0xe8/0x138) Ý<00000000004be6c2>¨ panic+0x92/0x1fc Ý<000000000010567e>¨ die+0x16e/0x17c Ý<0000000000106ef6>¨ illegal_op+0x1f2/0x1f8 Ý<00000000001185dc>¨ pgm_exit+0x0/0x4 Ý<000003c0009858da>¨ mpage_put_bnr_to_bhs+0x382/0x3c8 Ýext4¨ (Ý<000003c000985636>¨ mpage_put_bnr_to_bhs+0xde/0x3c8 Ýext4¨) Ý<000003c000987e2c>¨ mpage_da_map_blocks+0x1c0/0x440 Ýext4¨ Ý<000003c00098812c>¨ mpage_add_bh_to_extent+0x80/0x128 Ýext4¨ Ý<000003c0009885ac>¨ write_cache_pages_da+0x3d8/0x4b4 Ýext4¨ Ý<000003c0009889be>¨ ext4_da_writepages+0x336/0x718 Ýext4¨ Ý<00000000001ef67e>¨ __filemap_fdatawrite_range+0x6e/0x7c Ý<000003c00097de6c>¨ ext4_release_file+0xa4/0xfc Ýext4¨ Ý<000000000025338e>¨ __fput+0xf6/0x238 Ý<000000000024f29a>¨ filp_close+0x72/0xa0 Ý<000000000024f3b0>¨ SyS_close+0xe8/0x14c Ý<0000000000118444>¨ sysc_tracego+0xe/0x14 Ý<00000200000504f0>¨ 0x200000504f0 01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 00111ED0 Expected results: No panic, test pass Additional info: This seems related to bug 692530, not sure whether they share the same root cause
112 is based on 075 and can also lead to this panic.
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.