[Bug 213157] BUG: unable to handle page fault for address: fffbb000, Workqueue: ata_sff ata_sff_pio_task

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=213157

--- Comment #2 from Erhard F. (erhard_f@mailbox.org) ---
Created attachment 297837
  --> https://bugzilla.kernel.org/attachment.cgi?id=297837&action=edit
dmesg (kernel 5.14-rc1, Shuttle XPC FS51, Pentium 4)

No change in 5.14-rc1:

[...]
BUG: unable to handle page fault for address: fff9a000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
*pde = 1552a067 *pte = 00000000 
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 5.14.0-rc1-Pentium4 #3
Hardware name:  /FS51, BIOS 6.00 PG 12/02/2003
Workqueue: ata_sff ata_sff_pio_task
EIP: ioread16_rep+0x25/0x37
Code: ff ff 5f 5d c3 55 89 e5 57 89 d7 3d ff ff 03 00 76 0e 49 78 24 66 8b 10
66 89 17 83 c7 02 eb f2 3d 00 00 01 00 76 08 0f b7 d0 <f3> 66 6d eb 0a ba 28 7c
34 d5 e8 6b fd ff ff 5f 5d c3 55 89 e5 57
EAX: 000101f0 EBX: 00000100 ECX: 00000080 EDX: 000001f0
ESI: 00000200 EDI: fff9a000 EBP: c1227e7c ESP: c1227e78
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010006
CR0: 80050033 CR2: fff9a000 CR3: 15527000 CR4: 000006d0
Call Trace:
 ata_sff_data_xfer+0x2b/0x7e
 ? ata_qc_from_tag+0x44/0x44
 ata_pio_sector+0x81/0xee
 ata_pio_sectors+0x2d/0x69
 ata_sff_hsm_move+0x490/0x534
 ? __delay+0x10/0x12
 ? ata_sff_check_status+0xb/0xd
 ata_sff_pio_task+0x67/0xc6
 process_one_work+0x24f/0x3ba
 worker_thread+0x164/0x1f7
 kthread+0xd9/0xdb
 ? drain_workqueue+0xf5/0xf5
 ? set_kthread_struct+0x2c/0x2c
 ret_from_fork+0x1c/0x28
Modules linked in:
CR2: 00000000fff9a000
---[ end trace f06cc7f5ba75146c ]---
EIP: ioread16_rep+0x25/0x37
Code: ff ff 5f 5d c3 55 89 e5 57 89 d7 3d ff ff 03 00 76 0e 49 78 24 66 8b 10
66 89 17 83 c7 02 eb f2 3d 00 00 01 00 76 08 0f b7 d0 <f3> 66 6d eb 0a ba 28 7c
34 d5 e8 6b fd ff ff 5f 5d c3 55 89 e5 57
EAX: 000101f0 EBX: 00000100 ECX: 00000080 EDX: 000001f0
ESI: 00000200 EDI: fff9a000 EBP: c1227e7c ESP: c1227e78
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010006
CR0: 80050033 CR2: fff9a000 CR3: 15527000 CR4: 000006d0
note: kworker/1:1[32] exited with preempt_count 2
[...]

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