diff -urN wine-1.9.5-orig/dlls/ntdll/process.c wine-1.9.5/dlls/ntdll/process.c
--- wine-1.9.5-orig/dlls/ntdll/process.c	2016-03-05 00:46:54 +0900
+++ wine-1.9.5/dlls/ntdll/process.c	2016-03-18 13:26:10 +0900
@@ -131,6 +131,48 @@
 #endif
 }
 
+#elif defined(__linux__)
+
+static void fill_VM_COUNTERS(VM_COUNTERS* pvmi)
+{
+    FILE *f = fopen("/proc/self/status", "r");
+    if (f) {
+        char buf[100];
+        int at_bol = 1;
+        while (fgets(buf, sizeof(buf), f)) {
+            const int has_eol = (buf[strlen(buf)-1] == '\n');
+            if (at_bol) {
+                const char *tag = buf;
+                char *s = strchr(buf, ':');
+                if (s) {
+                    *s++ = '\0';
+                    const unsigned long value = strtoul(s, NULL, 10);
+                    if (strcmp(tag, "VmPeak") == 0) {
+                        pvmi->PeakVirtualSize = value*1024;
+                        pvmi->PeakPagefileUsage = value*1024;
+                        pvmi->QuotaPeakPagedPoolUsage = value*1024;
+                    } else if (strcmp(tag, "VmSize") == 0) {
+                        pvmi->VirtualSize = value*1024;
+                        pvmi->PagefileUsage = value*1024;
+                        pvmi->QuotaPagedPoolUsage = value*1024;
+                    } else if (strcmp(tag, "VmHWM") == 0) {
+                        pvmi->PeakWorkingSetSize = value*1024;
+                    } else if (strcmp(tag, "VmRSS") == 0) {
+                        pvmi->WorkingSetSize = value*1024;
+                    }
+                    /* We could get QuotaNonPagedPoolUsage from the VmLck
+                     * line, but Linux doesn't give a peak value for that,
+                     * so we just ignore it instead of returning a "peak"
+                     * value that might decrease over time.
+                     * FIXME: track the peak value ourselves. */
+                }
+            }
+            at_bol = has_eol;
+        }
+        fclose(f);
+    }
+}
+
 #else
 
 static void fill_VM_COUNTERS(VM_COUNTERS* pvmi)