diff options
| -rw-r--r-- | changes/diagnose_22752 | 4 | ||||
| -rw-r--r-- | src/common/storagedir.c | 6 | ||||
| -rw-r--r-- | src/or/consdiffmgr.c | 6 |
3 files changed, 13 insertions, 3 deletions
diff --git a/changes/diagnose_22752 b/changes/diagnose_22752 new file mode 100644 index 0000000000..b5bda05ec0 --- /dev/null +++ b/changes/diagnose_22752 @@ -0,0 +1,4 @@ + o Minor features (bug mitigation, diagnostics, logging): + - Avoid an assertion failure, and log a better error message, + when unable to remove a file from the consensus cache on + Windows. Attempts to mitigate and diagnose bug 22752. diff --git a/src/common/storagedir.c b/src/common/storagedir.c index 4405731884..31933f64c2 100644 --- a/src/common/storagedir.c +++ b/src/common/storagedir.c @@ -119,7 +119,8 @@ storage_dir_clean_tmpfiles(storage_dir_t *d) char *path = NULL; tor_asprintf(&path, "%s/%s", d->directory, fname); if (unlink(sandbox_intern_string(path))) { - log_warn(LD_FS, "Unable to unlink %s", escaped(path)); + log_warn(LD_FS, "Unable to unlink %s while cleaning " + "temporary files: %s", escaped(path), strerror(errno)); tor_free(path); continue; } @@ -455,7 +456,8 @@ storage_dir_remove_file(storage_dir_t *d, if (unlink(ipath) == 0) { storage_dir_reduce_usage(d, size); } else { - log_warn(LD_FS, "Unable to unlink %s", escaped(path)); + log_warn(LD_FS, "Unable to unlink %s while removing file: %s", + escaped(path), strerror(errno)); tor_free(path); return; } diff --git a/src/or/consdiffmgr.c b/src/or/consdiffmgr.c index 4036f665f9..638fcd6794 100644 --- a/src/or/consdiffmgr.c +++ b/src/or/consdiffmgr.c @@ -325,7 +325,8 @@ cdm_diff_ht_purge(consensus_flavor_t flav, if ((*diff)->cdm_diff_status == CDM_DIFF_PRESENT && flav == (*diff)->flavor) { - if (consensus_cache_entry_handle_get((*diff)->entry) == NULL) { + if (BUG((*diff)->entry == NULL) || + consensus_cache_entry_handle_get((*diff)->entry) == NULL) { /* the underlying entry has gone away; drop this. */ next = HT_NEXT_RMV(cdm_diff_ht, &cdm_diff_ht, diff); cdm_diff_free(this); @@ -622,6 +623,9 @@ consdiffmgr_find_diff_from(consensus_cache_entry_t **entry_out, return CONSDIFF_IN_PROGRESS; } + if (BUG(ent->entry == NULL)) { + return CONSDIFF_NOT_FOUND; + } *entry_out = consensus_cache_entry_handle_get(ent->entry); return (*entry_out) ? CONSDIFF_AVAILABLE : CONSDIFF_NOT_FOUND; |