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Remove Windows module-list-dumping code.

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This code is evidently allocating memory and thus confusing matters
even more.  Let's see whether we can learn anything with
just VirtualQuery.

Discussion: https://postgr.es/m/25495.1524517820@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2018-04-30 13:20:13 -04:00
parent bb779006f4
commit f7df8043f0
4 changed files with 10 additions and 44 deletions
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48
src/backend/port/win32_shmem.c
View File

@ -12,8 +12,6 @@
*/
#include "postgres.h"
#include <psapi.h>
#include "miscadmin.h"
#include "storage/dsm.h"
#include "storage/ipc.h"
@ -26,32 +24,6 @@ static Size UsedShmemSegSize = 0;
static bool EnableLockPagesPrivilege(int elevel);
static void pgwin32_SharedMemoryDelete(int status, Datum shmId);
/* Dump all modules loaded into proc */
static void
dumpdlls(HANDLE proc)
{
HMODULE dll[1024];
DWORD size_used = 1;
int i,
n;
if (!EnumProcessModules(proc, dll, sizeof(dll), &size_used))
{
elog(LOG, "EnumProcessModules failed: %lu", GetLastError());
return;
}
n = (int) (size_used / sizeof(*dll));
elog(LOG, "EnumProcessModules: %d modules in process 0x%p", n, proc);
for (i = 0; i < n; i++)
{
char name[MAXPGPATH];
if (!GetModuleFileNameEx(proc, dll[i], name, sizeof(name)))
sprintf(name, "GetModuleFileNameEx failed: %lu", GetLastError());
elog(LOG, "%d: 0x%p %s", i + 1, dll[i], name);
}
}
static const char *
mi_type(DWORD code)
{
@ -83,7 +55,7 @@ mi_state(DWORD code)
}
static void
dumpmem(const char *reason, HANDLE proc)
dumpmem(const char *reason)
{
char *addr = 0;
MEMORY_BASIC_INFORMATION mi;
@ -92,11 +64,11 @@ dumpmem(const char *reason, HANDLE proc)
do
{
memset(&mi, 0, sizeof(mi));
if (!VirtualQueryEx(proc, addr, &mi, sizeof(mi)))
if (!VirtualQuery(addr, &mi, sizeof(mi)))
{
if (GetLastError() == ERROR_INVALID_PARAMETER)
break;
elog(LOG, "VirtualQueryEx failed: %lu", GetLastError());
elog(LOG, "VirtualQuery failed: %lu", GetLastError());
break;
}
elog(LOG, "0x%p+0x%p %s (alloc 0x%p) %s",
@ -104,8 +76,6 @@ dumpmem(const char *reason, HANDLE proc)
mi_type(mi.Type), mi.AllocationBase, mi_state(mi.State));
addr += mi.RegionSize;
} while (addr > 0);
dumpdlls(proc);
}
/*
@ -446,7 +416,7 @@ retry:
/* Log information about the segment's virtual memory use */
if (VirtualQuery(memAddress, &info, sizeof(info)) != 0)
elog(LOG, "mapped shared memory segment at %p, requested size %zu, mapped size %zu",
elog(LOG, "mapped shared memory segment at %p, requested size 0x%zx, mapped size 0x%zx",
memAddress, size, info.RegionSize);
else
elog(LOG, "VirtualQuery(%p) failed: error code %lu",
@ -476,7 +446,7 @@ PGSharedMemoryReAttach(void)
Assert(UsedShmemSegAddr != NULL);
Assert(IsUnderPostmaster);
dumpmem("before VirtualFree", GetCurrentProcess());
dumpmem("before VirtualFree");
/*
* Release memory region reservation that was made by the postmaster
@ -485,18 +455,20 @@ PGSharedMemoryReAttach(void)
elog(FATAL, "failed to release reserved memory region (addr=%p): error code %lu",
UsedShmemSegAddr, GetLastError());
dumpmem("after VirtualFree", GetCurrentProcess());
dumpmem("after VirtualFree");
hdr = (PGShmemHeader *) MapViewOfFileEx(UsedShmemSegID, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0, UsedShmemSegAddr);
if (!hdr)
{
DWORD maperr = GetLastError();
dumpmem("after MapViewOfFileEx", GetCurrentProcess());
dumpmem("after failed MapViewOfFileEx");
elog(FATAL, "could not reattach to shared memory (key=%p, addr=%p): error code %lu",
UsedShmemSegID, UsedShmemSegAddr, maperr);
}
else
dumpmem("after MapViewOfFileEx");
if (hdr != origUsedShmemSegAddr)
elog(FATAL, "reattaching to shared memory returned unexpected address (got %p, expected %p)",
hdr, origUsedShmemSegAddr);
@ -639,7 +611,5 @@ pgwin32_ReserveSharedMemoryRegion(HANDLE hChild)
return false;
}
dumpmem("after reserve", hChild);
return true;
}