Re: [PATCH v2 0/1] fsmonitor: don't fill bitmap with entries to be removed

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"William Baker via GitGitGadget" <gitgitgadget@xxxxxxxxx> writes:

> This is the second iteration of changes to fix the segfault that I
> encountered while testing fsmonitor. This iteration includes the following
> updates for feedback I received on v1:
>
>  * Use %u instead of %"PRIuMAX" for unsigned ints in BUG format strings
>  * Updated the new test's comment to be more descriptive
>
> Thanks,
>
> William
>
> William Baker (1):
>   fsmonitor: don't fill bitmap with entries to be removed

Thanks.  Dscho, is this still Reviewed-by: you?

>
>  fsmonitor.c                 | 29 ++++++++++++++++++++++++-----
>  t/t7519-status-fsmonitor.sh | 13 +++++++++++++
>  t/t7519/fsmonitor-env       | 24 ++++++++++++++++++++++++
>  3 files changed, 61 insertions(+), 5 deletions(-)
>  create mode 100755 t/t7519/fsmonitor-env
>
>
> base-commit: 5fa0f5238b0cd46cfe7f6fa76c3f526ea98148d9
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-372%2Fwilbaker%2Ffix_git_fsmonitor_crash-v2
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-372/wilbaker/fix_git_fsmonitor_crash-v2
> Pull-Request: https://github.com/gitgitgadget/git/pull/372
>
> Range-diff vs v1:
>
>  1:  ce9bf4237e ! 1:  08741d986c fsmonitor: don't fill bitmap with entries to be removed
>      @@ -44,8 +44,8 @@
>       +	struct cache_entry *ce;
>       +	
>       +	if (pos >= istate->cache_nr)
>      -+		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" >= %"PRIuMAX")",
>      -+		    (uintmax_t)pos, (uintmax_t)istate->cache_nr);
>      ++		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" >= %u)",
>      ++		    (uintmax_t)pos, istate->cache_nr);
>        
>       +	ce = istate->cache[pos];
>        	ce->ce_flags &= ~CE_FSMONITOR_VALID;
>      @@ -56,8 +56,8 @@
>        	istate->fsmonitor_dirty = fsmonitor_dirty;
>        
>       +	if (istate->fsmonitor_dirty->bit_size > istate->cache_nr)
>      -+		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %"PRIuMAX")",
>      -+		    (uintmax_t)istate->fsmonitor_dirty->bit_size, (uintmax_t)istate->cache_nr);
>      ++		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)",
>      ++		    (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr);
>       +
>        	trace_printf_key(&trace_fsmonitor, "read fsmonitor extension successful");
>        	return 0;
>      @@ -85,8 +85,8 @@
>        	int fixup = 0;
>        
>       +	if (istate->fsmonitor_dirty->bit_size > istate->cache_nr)
>      -+		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %"PRIuMAX")",
>      -+		    (uintmax_t)istate->fsmonitor_dirty->bit_size, (uintmax_t)istate->cache_nr);
>      ++		BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)",
>      ++		    (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr);
>       +
>        	put_be32(&hdr_version, INDEX_EXTENSION_VERSION);
>        	strbuf_add(sb, &hdr_version, sizeof(uint32_t));
>      @@ -96,8 +96,8 @@
>        
>        			/* Mark all previously saved entries as dirty */
>       +			if (istate->fsmonitor_dirty->bit_size > istate->cache_nr)
>      -+				BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %"PRIuMAX")",
>      -+				    (uintmax_t)istate->fsmonitor_dirty->bit_size, (uintmax_t)istate->cache_nr);
>      ++				BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)",
>      ++				    (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr);
>        			ewah_each_bit(istate->fsmonitor_dirty, fsmonitor_ewah_callback, istate);
>        
>        			/* Now mark the untracked cache for fsmonitor usage */
>      @@ -109,8 +109,9 @@
>        	test_cmp expect actual
>        '
>        
>      -+# Use test files that start with 'z' so that the entries being added
>      -+# and removed appear at the end of the index.
>      ++# This test covers staging/unstaging files that appear at the end of the index.
>      ++# Test files with names beginning with 'z' are used under the assumption that
>      ++# earlier tests do not add/leave index entries that sort below them. 
>       +test_expect_success 'status succeeds after staging/unstaging ' '
>       +	test_commit initial &&
>       +	removed=$(test_seq 1 100 | sed "s/^/z/") &&



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