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Red Hat Enterprise Linux が BUG: Bad rss-counter state および BUG: non-zero pgtables_bytes on freeing mm の直後にクラッシュする

Solution In Progress - Updated -

Issue

  • Red Hat Enterprise Linux または Red Hat Enterprise Linux for Real Time がクラッシュし、クラッシュ直前に次のログが出力されました。

    [302301.489968] BUG: Bad rss-counter state mm:00000000e0ea23fa idx:0 val:12865
[302301.513574] BUG: Bad rss-counter state mm:00000000e0ea23fa idx:1 val:46392
[302301.514404] BUG: Bad rss-counter state mm:00000000e0ea23fa idx:0 val:12865
[302301.514405] BUG: Bad rss-counter state mm:00000000e0ea23fa idx:1 val:46392
[302301.514405] BUG: non-zero pgtables_bytes on freeing mm: 1814528
[...]
[302301.526553] kernel BUG at <LOCATION>
[302301.526563] invalid opcode: 0000 [#1] PREEMPT_RT SMP NOPTI
<STACK TRACE>

Environment

  • Red Hat Enterprise Linux 8.3 以前

    • 具体的には、kernel-4.18.0-305.el8 または kernel-rt-4.18.0-305.rt7.72.el8 未満のカーネルバージョン。
    • この問題は Red Hat Enterprise Linux for Real Time 8.3 で頻繁に確認されますが、非 Real Time カーネルにも影響する可能性があります。

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