Differential D52086

bnxt_en: Fix kernel panic by avoiding softirq reallocation in FW crash recovery
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Authored by chandrakanth.patil_broadcom.com on Aug 21 2025, 4:06 PM.

Details

Reviewers

imp
sumit.saxena_broadcom.com
jhb
markj
shurd
gallatin

Summary

During firmware crash recovery, the driver was reallocating TX completion softirqs even though
the ones from driver load were still active. This led to a kernel panic on driver reload.

The fix skips softirq reallocation during firmware crash recovery, preventing the panic.

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chandrakanth.patil_broadcom.com created this revision.Aug 21 2025, 4:06 PM

Herald added a reviewer: shurd. · View Herald TranscriptAug 21 2025, 4:06 PM

chandrakanth.patil_broadcom.com requested review of this revision.Aug 21 2025, 4:06 PM

its been long the patches not reviewed so please review the patch and provide your comments.

gallatin accepted this revision.Thu, Sep 18, 2:11 PM

This revision is now accepted and ready to land.Thu, Sep 18, 2:11 PM

Revision Contents
Changeset List

Path

Size

sys/

dev/

bnxt/

bnxt_en/

bnxt.h

1 line

if_bnxt.c

8 lines

Diff 160751

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sys/dev/bnxt/bnxt_en/bnxt.h