Kernel panic on systems with MD Raid devices after updating to 3.10.0-862.6.3.el7 with RIP read_balance

Solution Verified - Updated -

Issue

  • Kernel panic on systems with MD Raid devices after updating to kernel-3.10.0-862.6.3.el7 with RIP read_balance.
[    7.989278] device-mapper: raid: Loading target version 1.13.2
[    7.994932] md/raid1:mdX: active with 2 out of 2 mirrors
[    8.038537] Unable to handle kernel paging request for data at address 0x000005ec
[    8.038552] Faulting instruction address: 0xd000000005c364ac
[    8.038556] Oops: Kernel access of bad area, sig: 11 [#1]
...
[    8.038651] NIP [d000000005c364ac] read_balance+0x2bc/0x5f0 [raid1]
[    8.038655] LR [d000000005c37d70] raid1_make_request+0x170/0x660 [raid1]
[    8.038658] Call Trace:
[    8.038660] [c0000003f7aef2d0] [c0000003f7aef300] 0xc0000003f7aef300 (unreliable)
[    8.038665] [c0000003f7aef390] [d000000005c37d70] raid1_make_request+0x170/0x660 [raid1]
[    8.038672] [c0000003f7aef470] [c0000000007bd208] md_handle_request+0xa8/0x260
[    8.038676] [c0000003f7aef4f0] [d0000000060b08bc] raid_map+0x3c/0x60 [dm_raid]
[    8.038683] [c0000003f7aef510] [d000000001dc2f10] __map_bio+0xb0/0x230 [dm_mod]
[    8.038689] [c0000003f7aef600] [d000000001dc3214] __clone_and_map_data_bio.constprop.19+0x184/0x230 [dm_mod]
[    8.038695] [c0000003f7aef6a0] [d000000001dc3620] __split_and_process_bio+0x360/0x810 [dm_mod]
[    8.038702] [c0000003f7aef7a0] [d000000001dc3c20] dm_make_request+0x150/0x200 [dm_mod]
[    8.038707] [c0000003f7aef7f0] [c0000000004c3624] generic_make_request.part.51+0x274/0x4e0
[    8.038711] [c0000003f7aef8a0] [c0000000004c3a98] submit_bio+0x168/0x220
[    8.038716] [c0000003f7aef950] [c0000000003aeb7c] mpage_readpages+0x14c/0x190
[    8.038720] [c0000003f7aefa30] [c0000000003a5adc] blkdev_readpages+0x2c/0x40
[    8.038724] [c0000003f7aefa50] [c000000000279868] __do_page_cache_readahead+0x1a8/0x2d0
[    8.038729] [c0000003f7aefb30] [c00000000027a040] page_cache_sync_readahead+0x1d0/0x360
[    8.038733] [c0000003f7aefb90] [c000000000264e4c] generic_file_aio_read+0x2cc/0xde0
[    8.038737] [c0000003f7aefc90] [c0000000003a643c] blkdev_aio_read+0x5c/0xb0
[    8.038741] [c0000003f7aefcd0] [c000000000334a64] do_sync_read+0x94/0x110
[    8.038745] [c0000003f7aefdd0] [c000000000337310] SyS_read+0x140/0x3b0
[    8.038750] [c0000003f7aefe30] [c00000000000a284] system_call+0x38/0xfc

Environment

  • Red Hat Enterprise Linux 7
  • kernels from (including) 3.10.0-862.6.3.el7 up to (including) 3.10.0-862.11.6.el7
  • Systems with MD Raid

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