The kernel-rt crashes with a message, "kernel BUG at arch/x86/mm/ioremap.c:478!"

Solution Unverified - Updated -

Issue

  • The kernel-rt crashed with a message, "kernel BUG at arch/x86/mm/ioremap.c:478!"
[59885.725753] ------------[ cut here ]------------
[59885.725753] kernel BUG at arch/x86/mm/ioremap.c:478!
[59886.728756] invalid opcode: 0000 [#1] PREEMPT_RT SMP NOPTI
[59886.728759] CPU: 8 PID: 18723 Comm: Logger Kdump: loaded Tainted: P        W IOE    --------- -  - 4.18.0-425.3.1.rt7.213.el8.x86_64 #1
[59886.728761] Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.11.2 004/21/2021
[59886.728762] RIP: 0010:iounmap+0xa5/0xb0
[59886.728768] Code: 29 48 85 c0 74 24 48 89 ef 5b 5d e9 65 01 2a 00 48 c7 c7 80 b0 ac a0 e8 36 73 07 00 0f 0b 5b 5d e9 f0 d9 b8 00 e9 eb d9 b8 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 15 74 b7 b5
[59886.728769] RSP: 0018:ffffbc6860a67e80 EFLAGS: 00010282
[59886.728771] RAX: 0000000000000000 RBX: ffffbc6846aa1000 RCX: 0000000000000000
[59886.728772] RDX: ffff9979b33d8000 RSI: 0000000000000000 RDI: 00000000ffffffff
[59886.728773] RBP: ffff9978b11ef780 R08: ffffffffa106acc0 R09: 00080000000000ff
[59886.728774] R10: 000000005e2487ea R11: 0000000000000036 R12: ffff9979b3803388
[59886.728775] R13: ffffbc6860a67f10 R14: 00007fe3712e4cc8 R15: 0000000000000000
[59886.728775] FS:  00007fe3712e6700(0000) GS:ffff99838c100000(0000) knlGS:0000000000000000
[59886.728776] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[59886.728777] CR2: 00007f2dfee12e10 CR3: 000000021c49e001 CR4: 00000000007706e0
[59886.728778] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[59886.728779] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[59886.728779] PKRU: 55555554
[59886.728780] Call Trace:
[59886.728784]  tse_mbook_addr_set.isra.0+0x167/0x1b9 [altera_tse]
[59886.728788]  tse_mbook_addr_write.cold.1+0x5f/0xad [altera_tse]
[59886.728791]  vfs_write+0xa5/0x1b0
[59886.728796]  ksys_pwrite64+0x65/0xa0
[59886.728799]  do_syscall_64+0x87/0x1b0
[59886.728803]  entry_SYSCALL_64_after_hwframe+0x61/0xc6
[59886.728808] RIP: 0033:0x7fe371e4d487
[59886.728810] Code: 41 54 49 89 d4 55 48 89 f5 53 89 fb 48 83 ec 18 e8 ae f2 ff ff 4d 89 ea 4c 89 e2 48 89 ee 41 89 c0 89 df b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 e4 f2 ff ff 48
[59886.728811] RSP: 002b:00007fe3712e4c80 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[59886.728813] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fe371e4d487
[59886.728814] RDX: 0000000000000008 RSI: 00007fe3712e4cc8 RDI: 0000000000000008
[59886.728814] RBP: 00007fe3712e4cc8 R08: 0000000000000002 R09: 000000000d12b6c8
[59886.728815] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[59886.728816] R13: 0000000000000000 R14: 0000000000a1ad90 R15: 00007fe35c001178
[59886.728817] Modules linked in: [...]
[59886.728855]  dm_log dm_mod [last unloaded: altera_tse]

Environment

  • Red Hat Enterprise Linux for Real Time
  • BNPP MBook driver v10G_6.2_APAC (06.10.2022) named altera_tse

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