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authorNoah Misch <noah@leadboat.com>2017-11-12 13:03:15 -0800
committerNoah Misch <noah@leadboat.com>2017-11-12 13:05:55 -0800
commit30e99efe82c71c0320983dee5a9789e9f3f8a8e3 (patch)
treee8d079fc7e6172dce250428c858d3765ced85d4e /src
parent4cd5d8a9eb7be2906602a97d39c2bd4fb9e8153f (diff)
Don't call pgwin32_message_to_UTF16() without CurrentMemoryContext.
PostgreSQL running as a Windows service crashed upon calling write_stderr() before MemoryContextInit(). This fix completes work started in 5735efee15540765315aa8c1a230575e756037f7. Messages this early contain only ASCII bytes; if we removed the CurrentMemoryContext requirement, the ensuing conversions would have no effect. Back-patch to 9.3 (all supported versions). Takayuki Tsunakawa, reviewed by Michael Paquier. Discussion: https://postgr.es/m/0A3221C70F24FB45833433255569204D1F80CC73@G01JPEXMBYT05
Diffstat (limited to 'src')
-rw-r--r--src/backend/utils/error/elog.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index fcb5f180b23..6c72f23c5db 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -1910,11 +1910,16 @@ write_eventlog(int level, const char *line, int len)
* Convert message to UTF16 text and write it with ReportEventW, but
* fall-back into ReportEventA if conversion failed.
*
+ * Since we palloc the structure required for conversion, also fall
+ * through to writing unconverted if we have not yet set up
+ * CurrentMemoryContext.
+ *
* Also verify that we are not on our way into error recursion trouble due
* to error messages thrown deep inside pgwin32_toUTF16().
*/
if (GetDatabaseEncoding() != GetPlatformEncoding() &&
- !in_error_recursion_trouble())
+ !in_error_recursion_trouble() &&
+ CurrentMemoryContext != NULL)
{
utf16 = pgwin32_toUTF16(line, len, NULL);
if (utf16)