vm: Fix error handling in vm_thread_stack_back()
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Authored by markj on Mon, Apr 29, 11:56 PM.

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Reviewers

bnovkov
alc
kib

Commits

rG661a83f9bf9f: vm: Fix error handling in vm_thread_stack_back()

Summary

vm_object_page_remove() wants to busy the page, but that won't work
here. (Kernel stack pages are always busy.)

Make the error handling path look more like vm_thread_stack_dispose().

Reported by: pho
Fixes: 7a79d0669761 ("vm: improve kstack_object pindex calculation to avoid pindex holes")

Diff Detail

Repository

rG FreeBSD src repository

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Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

markj created this revision.Mon, Apr 29, 11:56 PM

Herald added a subscriber: imp. · View Herald TranscriptMon, Apr 29, 11:56 PM

markj requested review of this revision.Mon, Apr 29, 11:56 PM

Harbormaster completed remote builds in B57456: Diff 137860.Mon, Apr 29, 11:56 PM

kib accepted this revision.Tue, Apr 30, 12:19 AM

kib added inline comments.

sys/vm/vm_glue.c
635	This blank line is not needed.

This revision is now accepted and ready to land.Tue, Apr 30, 12:19 AM

markj marked an inline comment as done.Tue, Apr 30, 12:20 AM

bnovkov accepted this revision.Tue, Apr 30, 7:29 AM

Closed by commit rG661a83f9bf9f: vm: Fix error handling in vm_thread_stack_back() (authored by markj). · Explain WhyTue, Apr 30, 1:46 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG661a83f9bf9f: vm: Fix error handling in vm_thread_stack_back().

Revision Contents
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Path

Size

sys/

vm/

vm_glue.c

6 lines

Diff 137891

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vm: Fix error handling in vm_thread_stack_back()ClosedPublicActions