aboutsummaryrefslogtreecommitdiff
path: root/src/backend/port/sysv_shmem.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/backend/port/sysv_shmem.c')
-rw-r--r--src/backend/port/sysv_shmem.c121
1 files changed, 46 insertions, 75 deletions
diff --git a/src/backend/port/sysv_shmem.c b/src/backend/port/sysv_shmem.c
index cccfe22d5a5..3f31f21d8e6 100644
--- a/src/backend/port/sysv_shmem.c
+++ b/src/backend/port/sysv_shmem.c
@@ -10,7 +10,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/port/sysv_shmem.c,v 1.12 2003/07/22 23:30:39 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/port/sysv_shmem.c,v 1.13 2003/07/27 21:49:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -88,56 +88,45 @@ InternalIpcMemoryCreate(IpcMemoryKey memKey, uint32 size)
/*
* Else complain and abort
*/
- fprintf(stderr, "IpcMemoryCreate: shmget(key=%d, size=%u, 0%o) failed: %s\n",
- (int) memKey, size, (IPC_CREAT | IPC_EXCL | IPCProtection),
- strerror(errno));
-
- if (errno == EINVAL)
- fprintf(stderr,
- "\nThis error usually means that PostgreSQL's request for a shared memory\n"
- "segment exceeded your kernel's SHMMAX parameter. You can either\n"
- "reduce the request size or reconfigure the kernel with larger SHMMAX.\n"
- "To reduce the request size (currently %u bytes), reduce\n"
- "PostgreSQL's shared_buffers parameter (currently %d) and/or\n"
- "its max_connections parameter (currently %d).\n"
- "\n"
- "If the request size is already small, it's possible that it is less than\n"
- "your kernel's SHMMIN parameter, in which case raising the request size or\n"
- "reconfiguring SHMMIN is called for.\n"
- "\n"
- "The PostgreSQL documentation contains more information about shared\n"
- "memory configuration.\n\n",
- size, NBuffers, MaxBackends);
-
- else if (errno == ENOMEM)
- fprintf(stderr,
- "\nThis error usually means that PostgreSQL's request for a shared\n"
- "memory segment exceeded available memory or swap space.\n"
- "To reduce the request size (currently %u bytes), reduce\n"
- "PostgreSQL's shared_buffers parameter (currently %d) and/or\n"
- "its max_connections parameter (currently %d).\n"
- "\n"
- "The PostgreSQL documentation contains more information about shared\n"
- "memory configuration.\n\n",
- size, NBuffers, MaxBackends);
-
- else if (errno == ENOSPC)
- fprintf(stderr,
- "\nThis error does *not* mean that you have run out of disk space.\n"
- "\n"
- "It occurs either if all available shared memory IDs have been taken,\n"
- "in which case you need to raise the SHMMNI parameter in your kernel,\n"
- "or because the system's overall limit for shared memory has been\n"
- "reached. If you cannot increase the shared memory limit,\n"
- "reduce PostgreSQL's shared memory request (currently %u bytes),\n"
- "by reducing its shared_buffers parameter (currently %d) and/or\n"
- "its max_connections parameter (currently %d).\n"
- "\n"
- "The PostgreSQL documentation contains more information about shared\n"
- "memory configuration.\n\n",
- size, NBuffers, MaxBackends);
-
- proc_exit(1);
+ ereport(FATAL,
+ (errmsg("could not create shared memory segment: %m"),
+ errdetail("Failed syscall was shmget(key=%d, size=%u, 0%o).",
+ (int) memKey, size,
+ IPC_CREAT | IPC_EXCL | IPCProtection),
+ (errno == EINVAL) ?
+ errhint("This error usually means that PostgreSQL's request for a shared memory "
+ "segment exceeded your kernel's SHMMAX parameter. You can either "
+ "reduce the request size or reconfigure the kernel with larger SHMMAX. "
+ "To reduce the request size (currently %u bytes), reduce "
+ "PostgreSQL's shared_buffers parameter (currently %d) and/or "
+ "its max_connections parameter (currently %d).\n"
+ "If the request size is already small, it's possible that it is less than "
+ "your kernel's SHMMIN parameter, in which case raising the request size or "
+ "reconfiguring SHMMIN is called for.\n"
+ "The PostgreSQL documentation contains more information about shared "
+ "memory configuration.",
+ size, NBuffers, MaxBackends) : 0,
+ (errno == ENOMEM) ?
+ errhint("This error usually means that PostgreSQL's request for a shared "
+ "memory segment exceeded available memory or swap space. "
+ "To reduce the request size (currently %u bytes), reduce "
+ "PostgreSQL's shared_buffers parameter (currently %d) and/or "
+ "its max_connections parameter (currently %d).\n"
+ "The PostgreSQL documentation contains more information about shared "
+ "memory configuration.",
+ size, NBuffers, MaxBackends) : 0,
+ (errno == ENOSPC) ?
+ errhint("This error does *not* mean that you have run out of disk space. "
+ "It occurs either if all available shared memory IDs have been taken, "
+ "in which case you need to raise the SHMMNI parameter in your kernel, "
+ "or because the system's overall limit for shared memory has been "
+ "reached. If you cannot increase the shared memory limit, "
+ "reduce PostgreSQL's shared memory request (currently %u bytes), "
+ "by reducing its shared_buffers parameter (currently %d) and/or "
+ "its max_connections parameter (currently %d).\n"
+ "The PostgreSQL documentation contains more information about shared "
+ "memory configuration.",
+ size, NBuffers, MaxBackends) : 0));
}
/* Register on-exit routine to delete the new segment */
@@ -152,11 +141,7 @@ InternalIpcMemoryCreate(IpcMemoryKey memKey, uint32 size)
#endif
if (memAddress == (void *) -1)
- {
- fprintf(stderr, "IpcMemoryCreate: shmat(id=%d) failed: %s\n",
- shmid, strerror(errno));
- proc_exit(1);
- }
+ elog(FATAL, "shmat(id=%d) failed: %m", shmid);
/* Register on-exit routine to detach new segment before deleting */
on_shmem_exit(IpcMemoryDetach, PointerGetDatum(memAddress));
@@ -177,13 +162,7 @@ static void
IpcMemoryDetach(int status, Datum shmaddr)
{
if (shmdt(DatumGetPointer(shmaddr)) < 0)
- fprintf(stderr, "IpcMemoryDetach: shmdt(%p) failed: %s\n",
- DatumGetPointer(shmaddr), strerror(errno));
-
- /*
- * We used to report a failure via ereport(WARNING), but that's pretty
- * pointless considering any client has long since disconnected ...
- */
+ elog(LOG, "shmdt(%p) failed: %m", DatumGetPointer(shmaddr));
}
/****************************************************************************/
@@ -194,13 +173,8 @@ static void
IpcMemoryDelete(int status, Datum shmId)
{
if (shmctl(DatumGetInt32(shmId), IPC_RMID, (struct shmid_ds *) NULL) < 0)
- fprintf(stderr, "IpcMemoryDelete: shmctl(%d, %d, 0) failed: %s\n",
- DatumGetInt32(shmId), IPC_RMID, strerror(errno));
-
- /*
- * We used to report a failure via ereport(WARNING), but that's pretty
- * pointless considering any client has long since disconnected ...
- */
+ elog(LOG, "shmctl(%d, %d, 0) failed: %m",
+ DatumGetInt32(shmId), IPC_RMID);
}
/*
@@ -274,11 +248,8 @@ PGSharedMemoryCreate(uint32 size, bool makePrivate, int port)
if (ExecBackend && UsedShmemSegAddr != NULL && !makePrivate)
{
if ((hdr = PGSharedMemoryAttach(UsedShmemSegID, &shmid)) == NULL)
- {
- fprintf(stderr, "Unable to attach to proper memory at fixed address: shmget(key=%d, addr=%p) failed: %s\n",
- (int) UsedShmemSegID, UsedShmemSegAddr, strerror(errno));
- proc_exit(1);
- }
+ elog(FATAL, "could not attach to proper memory at fixed address: shmget(key=%d, addr=%p) failed: %m",
+ (int) UsedShmemSegID, UsedShmemSegAddr);
return hdr;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-24 17:33:04 +0000