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mdbx: backport - fix MDBX_CORRUPTED due open/shrink collision.

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This commit is contained in:
Leo Yuriev
2018-09-13 19:21:57 +03:00
committed by Leonid Yuriev
parent 337f7589f8
commit d757ba1266
1 changed files with 15 additions and 10 deletions
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25
src/mdbx.c
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@@ -4406,6 +4406,11 @@ static int __cold mdbx_read_header(MDBX_env *env, MDBX_meta *meta,
return MDBX_INVALID;
}
if (!retryleft) {
mdbx_error("meta[%u] is too volatile, skip it", meta_number);
continue;
}
/* LY: check pagesize */
if (!mdbx_is_power2(page.mp_meta.mm_psize) ||
page.mp_meta.mm_psize < MIN_PAGESIZE ||
@@ -4423,11 +4428,6 @@ static int __cold mdbx_read_header(MDBX_env *env, MDBX_meta *meta,
page.mp_meta.mm_psize);
}
if (!retryleft) {
mdbx_error("meta[%u] is too volatile, skip it", meta_number);
continue;
}
if (page.mp_meta.mm_txnid_a != page.mp_meta.mm_txnid_b) {
mdbx_warning("meta[%u] not completely updated, skip it", meta_number);
continue;
@@ -4494,11 +4494,16 @@ static int __cold mdbx_read_header(MDBX_env *env, MDBX_meta *meta,
const uint64_t used_bytes =
page.mp_meta.mm_geo.next * (uint64_t)page.mp_meta.mm_psize;
if (used_bytes > *filesize) {
mdbx_notice("meta[%u] used-bytes (%" PRIu64 ") beyond filesize (%" PRIu64
"), skip it",
meta_number, used_bytes, *filesize);
rc = MDBX_CORRUPTED;
continue;
rc = mdbx_filesize(env->me_fd, filesize);
if (unlikely(rc != MDBX_SUCCESS))
return rc;
if (used_bytes > *filesize) {
mdbx_notice("meta[%u] used-bytes (%" PRIu64
") beyond filesize (%" PRIu64 "), skip it",
meta_number, used_bytes, *filesize);
rc = MDBX_CORRUPTED;
continue;
}
}
/* LY: check mapsize limits */