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vfs: add VNPASS macro and augment VNASSERT to print more about the assert
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Authored by mjg on Jan 28 2020, 11:39 AM.
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kib
jeff
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rS357237: vfs: add VNPASS macro and augment VNASSERT to print more about the assert
Summary

Inspired by MPASS.

VNPASS repeats the first line for panicstr, I don't know if that's a problem apart from looking weird.

Sample output:

VNASSERT failed: vp->v_holdcnt == 1234 not true at /usr/src/sys/kern/vfs_subr.c:3148 (vputx)
0xfffff80003ba71e8: type VDIR
    usecount 7, writecount 0, refcount 1 mountedhere 0
    flags (VV_ROOT)
    lock type devfs: EXCL by thread 0xfffff800027d96e0 (pid 1, kernel, tid 100002)
panic: foo test
VNASSERT failed: vp->v_holdcnt == 1234 not true at /usr/src/sys/kern/vfs_subr.c:3148 (vputx)
0xfffff80003ba51e8: type VDIR
    usecount 7, writecount 0, refcount 1 mountedhere 0
    flags (VV_ROOT)
    lock type devfs: EXCL by thread 0xfffff800027d96e0 (pid 1, kernel, tid 100002)
panic: condition vp->v_holdcnt == 1234 not met at /usr/src/sys/kern/vfs_subr.c:3148 (vputx)

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rS FreeBSD src repository - subversion
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Event Timeline

mjg created this revision.Jan 28 2020, 11:39 AM
Herald added a subscriber: imp. · View Herald TranscriptJan 28 2020, 11:39 AM
Harbormaster completed remote builds in B28974: Diff 67399.Jan 28 2020, 11:39 AM
mjg edited the summary of this revision. (Show Details)Jan 28 2020, 11:46 AM
kib accepted this revision.Jan 28 2020, 4:46 PM

I would also change VNASSERT in the way you proposed.

This revision is now accepted and ready to land.Jan 28 2020, 4:46 PM
mjg updated this revision to Diff 67427.Jan 28 2020, 6:29 PM
mjg retitled this revision from vfs: add VNPASS macro to vfs: add VNPASS macro and augment VNASSERT to print more about the assert.
mjg edited the summary of this revision. (Show Details)
  • augment VNASSERT
This revision now requires review to proceed.Jan 28 2020, 6:29 PM
mjg edited the summary of this revision. (Show Details)Jan 28 2020, 6:29 PM
mjg edited the summary of this revision. (Show Details)
mjg edited the summary of this revision. (Show Details)
kib accepted this revision.Jan 28 2020, 7:11 PM
This revision is now accepted and ready to land.Jan 28 2020, 7:11 PM
Closed by commit rS357237: vfs: add VNPASS macro and augment VNASSERT to print more about the assert (authored by mjg). · Explain WhyJan 29 2020, 1:51 AM
This revision was automatically updated to reflect the committed changes.
mjg added a commit: rS357237: vfs: add VNPASS macro and augment VNASSERT to print more about the assert.

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head/
sys/
sys/
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Diff 67443

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head/sys/sys/systm.h

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