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Commit9bffaad

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Fixes:
This is a patch to prevent an endless loop occuring in the Postgres backendwhen a 'warning' error condition generates another warning error contitionin the handler code.Submitted by: Chris Dunlop, <chris@onthe.net.au>
1 parent64bfa04 commit9bffaad

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2 files changed

+12
-6
lines changed

2 files changed

+12
-6
lines changed

‎src/backend/tcop/postgres.c

Lines changed: 5 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
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*
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*
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* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.2 1996/07/15 19:22:17 scrappy Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.3 1996/07/19 06:13:42 scrappy Exp $
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*
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* NOTES
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* this is the "main" module of the postgres backend and
@@ -111,6 +111,7 @@ jmp_buf Warn_restart;
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#else
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sigjmp_bufWarn_restart;
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#endif/*defined(WIN32) || defined(PORTNAME_next) */
114+
intInWarn;
114115

115116
externintNBuffers;
116117

@@ -1203,6 +1204,7 @@ PostgresMain(int argc, char *argv[])
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#else
12041205
if (setjmp(Warn_restart)!=0) {
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#endif/* WIN32 */
1207+
InWarn=1;
12061208

12071209
time(&tim);
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@@ -1213,14 +1215,15 @@ PostgresMain(int argc, char *argv[])
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AbortCurrentTransaction();
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}
1218+
InWarn=0;
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/* ----------------
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*POSTGRES main processing loop begins here
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* ----------------
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*/
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if (IsUnderPostmaster== false) {
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puts("\nPOSTGRES backend interactive interface");
1223-
puts("$Revision: 1.2 $ $Date: 1996/07/15 19:22:17 $");
1226+
puts("$Revision: 1.3 $ $Date: 1996/07/19 06:13:42 $");
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}
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/* ----------------

‎src/backend/utils/error/elog.c

Lines changed: 7 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
88
*
99
* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.2 1996/07/16 07:13:47 scrappy Exp $
10+
* $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.3 1996/07/19 06:13:58 scrappy Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -150,13 +150,16 @@ elog(int lev, char *fmt, ... )
150150
#endif/* !PG_STANDALONE */
151151

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if (lev==WARN) {
153+
externintInWarn;
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ProcReleaseSpins(NULL);/* get rid of spinlocks we hold */
155+
if (!InWarn) {
154156
#ifndefWIN32
155-
kill(getpid(),1);/* abort to traffic cop */
156-
pause();
157+
kill(getpid(),1);/* abort to traffic cop */
158+
pause();
157159
#else
158-
longjmp(Warn_restart,1);
160+
longjmp(Warn_restart,1);
159161
#endif/* WIN32 */
162+
}
160163
/*
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* The pause(3) is just to avoid race conditions where the
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* thread of control on an MP system gets past here (i.e.,

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