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authorJunio C Hamano <gitster@pobox.com>2021-07-16 17:42:47 -0700
committerJunio C Hamano <gitster@pobox.com>2021-07-16 17:42:47 -0700
commita93c6fd677f16285ce1109f9f200b2b235ab981e (patch)
treef41a55ef2d736a19648bed510aa9ff8cdee40aee /read-cache.c
parentfba551379ef89b92b9356caa4096144026250c22 (diff)
parentdc0592941138df684770bfe800ccad6b810214c3 (diff)
Merge branch 'ew/mmap-failures'
Error message update.

* ew/mmap-failures:
  xmmap: inform Linux users of tuning knobs on ENOMEM
Diffstat (limited to 'read-cache.c')
-rw-r--r--read-cache.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/read-cache.c b/read-cache.c
index 0c3ac3cefc..ba2b012a6c 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -2233,7 +2233,8 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
 
 	mmap = xmmap_gently(NULL, mmap_size, PROT_READ, MAP_PRIVATE, fd, 0);
 	if (mmap == MAP_FAILED)
-		die_errno(_("%s: unable to map index file"), path);
+		die_errno(_("%s: unable to map index file%s"), path,
+			mmap_os_err());
 	close(fd);
 
 	hdr = (const struct cache_header *)mmap;