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在加载第三方模块时,在 apply_alternatives() 出现内核 panic。

Solution In Progress - Updated -

Issue

  • 根据以下日志,在加载第三方模块时出现内核 panic。
[  296.397293] oracleoks: loading out-of-tree module taints kernel.
[  296.399478] oracleoks: module license 'Proprietary' taints kernel.
[  296.401599] Disabling lock debugging due to kernel taint
[  296.403801] oracleoks: module verification failed: signature and/or required key missing - tainting kernel
[  296.410066] BUG: unable to handle page fault for address: ffffffffc3521caf
[  296.412603] #PF: supervisor read access in kernel mode
[  296.414235] #PF: error_code(0x0000) - not-present page
[  296.416199] PGD 18e815067 P4D 18e815067 PUD 18e817067 PMD 0 
[  296.418246] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  296.419792] CPU: 1 PID: 6671 Comm: modprobe Kdump: loaded Tainted: P           OE     -------  ---  5.14.0-427.91.1.el9_4.x86_64 #1
[  296.424267] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008  12/07/2018
[  296.427385] RIP: 0010:apply_alternatives+0x197/0x2f0
..
[  296.456012] Call Trace:
[  296.456863]  <TASK>
[  296.488236]  module_finalize+0x263/0x3c0
[  296.490658]  load_module+0x817/0xb20
[  296.491684]  __do_sys_finit_module+0xae/0x110
[  296.492948]  do_syscall_64+0x5c/0x90
..
[  296.576086] CR2: ffffffffc3521caf CR3: 0000000136746005 CR4: 0000000000370ee0
[  296.578537] Kernel panic - not syncing: Fatal exception

Environment

  • Red Hat OpenShift Container Platform
  • Red Hat Enterprise Linux 9.4.z
    • kernel-5.14.0-427.87.1.el9_4 及更新版本。
  • Out-of-tree (O) 内核模块(至少以下之一):
    • Oracle [oracleoks]
    • IBM [mmfs26]
    • IBM [tracedev]
    • HPE [ice]
    • HPE [numatools]
    • Portworx [px]
    • eTrust [SEOS]

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