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<a href="https://gitlab.rtems.org/junkes">Heinz Junkes</a>
<a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/merge_requests/155#note_156189">commented</a>:
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<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">I’ve tested it on the hardware. It seems to be working fine.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Unfortunately, I’ve had the crash again from <a href="https://github.com/epics-base/pvxs/pull/197#" rel="nofollow noreferrer noopener" target="_blank" style="margin-top: 0px;">https://github.com/epics-base/pvxs/pull/197#</a></p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">The crash reproduced — and critically, DAR/R30 = 0x7c000278, the exact same value as the original crash months ago. That's strong confirmation this is a deterministic corruption pattern, not a random bit-flip, and it happened with <a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/merge_requests/155" title="rtemsbsd/mve: Fix the interrupt handler closure and installation order" class="gfm gfm-merge_request" data-original="!155" data-link="false" data-link-reference="false" data-merge-request="2842" data-project="13" data-project-path="rtems/pkg/rtems-libbsd" data-iid="155" data-container="body" data-placement="top" data-reference-type="merge_request" style="margin-top: 0px;">!155</a> in place (both <a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/work_items/94" title="beatnik/mve: rtems_interrupt_handler_install passes port_num instead of mveth_private* to mveth_isr, crashing on first interrupt" class="gfm gfm-issue" data-original="#94" data-link="false" data-link-reference="false" data-issue="29798" data-project="13" data-iid="94" data-namespace-path="rtems/pkg/rtems-libbsd" data-project-path="rtems/pkg/rtems-libbsd" data-issue-type="issue" data-container="body" data-placement="top" data-reference-type="issue">#94</a> and <a href="https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/work_items/105" title="beatnik/mve: interrupt handler is installed before the nexus softc is initialized" class="gfm gfm-issue" data-original="#105" data-link="false" data-link-reference="false" data-issue="29870" data-project="13" data-iid="105" data-namespace-path="rtems/pkg/rtems-libbsd" data-project-path="rtems/pkg/rtems-libbsd" data-issue-type="issue" data-container="body" data-placement="top" data-reference-type="issue">#105</a> fixed). This rules out mve_isr/the attach-window race
as the cause of this crash — it's unrelated, and the leading libevent/pipe hypothesis remains the live lead.</p>
<p dir="auto" style="color: #3a383f; margin: 0px;" align="initial">The mve fixes are validated as not being the source of this particular bug.</p>
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