linux-kernel - Re: [PATCH] linux/export: fix reference to exported functions for parisc64

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Message-ID: <c6568683-86b4-c48d-ed37-f1f87677eb44@bell.net>
Date:   Tue, 5 Sep 2023 19:59:01 -0400
From:   John David Anglin <dave.anglin@...l.net>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        linux-parisc@...r.kernel.org, Helge Deller <deller@....de>
Cc:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH] linux/export: fix reference to exported functions for
 parisc64

On 2023-09-05 5:57 p.m., John David Anglin wrote:
> I'll check ddb5cdbafaaa.
Similar fault with ddb5cdbafaaa:

sata_sil24 0000:00:01.0: Applying completion IRQ loss on PCI-X errata fix
Backtrace:
scsi host2: sata_sil24
  [<0000000040bf2c00>] mutex_lock+0x48/0xc8
  [<000000004023d370>] cpu_hotplug_disable+0x80/0x98
scsi host3: sata_sil24
  [<0000000040792314>] pci_device_probe+0x144/0x2a8
  [<00000000408af87c>] really_probe+0x12c/0x5a8
scsi host4: sata_sil24
  [<00000000408afd7c>] __driver_probe_device+0x84/0x1a0
  [<00000000408aff44>] driver_probe_device+0xac/0x260
scsi host5: sata_sil24
  [<00000000408b0684>] __driver_attach_async_helper+0x8c/0x160
  [<000000004028043c>] async_run_entry_fn+0x64/0x1d0
ata3: SATA max UDMA/100 host m128@...fffffff80088000 port 0xffffffff80080000 ir6
  [<0000000040269c88>] process_one_work+0x238/0x520
  [<000000004026a184>] worker_thread+0x214/0x770
ata4: SATA max UDMA/100 host m128@...fffffff80088000 port 0xffffffff80082000 ir6
  [<00000000402788d4>] kthread+0x274/0x280
ata5: SATA max UDMA/100 host m128@...fffffff80088000 port 0xffffffff80084000 ir6
  [<0000000040202020>] ret_from_kernel_thread+0x20/0x28
ata6: SATA max UDMA/100 host m128@...fffffff80088000 port 0xffffffff80086000 ir6


Page fault: no context: Code=6 (Instruction TLB miss fault) at addr 0b3a029a8348
CPU: 0 PID: 10 Comm: kworker/u64:0 Not tainted 6.4.0-rc2+ #1
Hardware name: 9000/785/C8000
Workqueue: events_unbound async_run_entry_fn

      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 0b3a029a83406038 0000000000010770 0000000050d94c50
r04-07  0000000000010000 0000000053a97000 00000000515398b0 0000000000000000
r08-11  0000000051539800 0000000053a97800 0000000053a97120 00000000515398b0
r12-15  0000000050c10000 0000000000000002 0000000040d54d60 0000000000000001
r16-19  0000000040ca1d20 0000000050ce46c0 0000000050d56150 0000000000020000
r20-23  000000007f41c000 000000000000000f 0002000000000002 0000000000044b38
r24-27  0000000000000000 0000000000000003 0000000000000002 0000000000010000
r28-31  0000000000002395 0000000050d94d60 0000000050d94d00 0000000000001033
sr00-03  00000000000c7000 0000000000000000 0000000000000000 00000000000c5c00
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 000000000b3a029a 000000000b3a029a IAOQ: 0b3a029a83406038 0b3a029a8340603c
  IIR: 43ffff80    ISR: 0000000000000dc0  IOR: 00000000402849ac
  CPU:        0   CR30: 0000000050d56150 CR31: ffffffffffffffff
  ORIG_R28: 0000000000000080
  IAOQ[0]: 0xb3a029a83406038
  IAOQ[1]: 0xb3a029a8340603c
  RP(r2): ehci_pci_setup+0x100/0x780 [ehci_pci]
Backtrace:
  [<0000000040bf2c00>] mutex_lock+0x48/0xc8
  [<000000004023d370>] cpu_hotplug_disable+0x80/0x98
  [<0000000040792314>] pci_device_probe+0x144/0x2a8
  [<00000000408af87c>] really_probe+0x12c/0x5a8
  [<00000000408afd7c>] __driver_probe_device+0x84/0x1a0
  [<00000000408aff44>] driver_probe_device+0xac/0x260
  [<00000000408b0684>] __driver_attach_async_helper+0x8c/0x160
  [<000000004028043c>] async_run_entry_fn+0x64/0x1d0
  [<0000000040269c88>] process_one_work+0x238/0x520
  [<000000004026a184>] worker_thread+0x214/0x770
  [<00000000402788d4>] kthread+0x274/0x280
  [<0000000040202020>] ret_from_kernel_thread+0x20/0x28

Kernel panic - not syncing: Page fault: no context

Dave

-- 
John David Anglin  dave.anglin@...l.net