Re: [ [ros-dev] [ros-svn] [hbirr] 13963: Lock the kernel - Debug traces ede 2 for Bug512]

[Hartmut Birr]

Hartmut Birr schrieb:
> This means colinux creates many pipes. Our npfs driver allocates the
> memory from non paged pool and possible it does not limit the size of
> the pipe buffer. I'm not sure if colinux creates to much pipes or if
> there is anywhere a bug which prevents from closing unused pipes (in
> colinux or ros).

Hi Gerard,

can you add my little patch and check how many pipes are created when
colinux is started?

- Hartmut

M:\Sandbox\ros_work\reactos>set SVN_EDITOR=notepad

M:\Sandbox\ros_work\reactos>d:\programme\subversion\bin\svn.exe diff drivers\fs\np        
Index: drivers/fs/np/create.c
===================================================================
--- drivers/fs/np/create.c	(revision 14100)
+++ drivers/fs/np/create.c	(working copy)
@@ -16,6 +16,8 @@
 #define NDEBUG
 #include <debug.h>

+static ULONG PipeCount = 0;
+
 /* FUNCTIONS *****************************************************************/

static PNPFS_PIPE
@@ -451,6 +453,8 @@
          }

InsertTailList(&DeviceExt->PipeListHead, &Pipe->PipeListEntry);
+       PipeCount++;
+       DPRINT1("PipeCount: %d\n", PipeCount);
        KeUnlockMutex(&DeviceExt->PipeListLock);
      }

@@ -460,9 +464,12 @@
        if (Fcb->Data == NULL)
          {
            ExFreePool(Fcb);
-
            if (NewPipe)
              {
+               /* 
+	        * FIXME:
+	        *   Lock the pipelist and remove the pipe from the list.
+	        */
                RtlFreeUnicodeString(&Pipe->PipeName);
                ExFreePool(Pipe);
              }
@@ -592,6 +599,7 @@
       RtlFreeUnicodeString(&Pipe->PipeName);
       KeLockMutex(&DeviceExt->PipeListLock);
       RemoveEntryList(&Pipe->PipeListEntry);
+      PipeCount--;
       KeUnlockMutex(&DeviceExt->PipeListLock);
       ExFreePool(Pipe);
    }