diff --git a/src/lwp/lwp.c b/src/lwp/lwp.c
index 3e438e8bd1..856934377f 100644
--- a/src/lwp/lwp.c
+++ b/src/lwp/lwp.c
@@ -350,7 +350,7 @@ int LWP_CreateProcess(ep, stacksize, priority, parm, name, pid)
 #ifdef __hp9000s800
 	savecontext(Create_Process_Part2, &temp2->context, stackptr+MINFRAME);
 #else
-#if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
+#if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) || defined(AFS_PARISC_LINUX24_ENV)
 	/* Need to have the sp on an 8-byte boundary for storing doubles. */
 	savecontext(Create_Process_Part2, &temp2->context,
 		    stackptr+stacksize-16); /* 16 = 2 * jmp_buf_type*/
@@ -492,7 +492,7 @@ int LWP_DestroyProcess(pid)		/* destroy a lightweight process */
 	    savecontext(Dispatcher, &(temp -> context),
 			&(LWPANCHOR.dsptchstack[MINFRAME]));
 #else
-#if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
+#if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) || defined(AFS_PARISC_LINUX24_ENV)
 	    savecontext(Dispatcher, &(temp -> context),
 			&(LWPANCHOR.dsptchstack[(sizeof LWPANCHOR.dsptchstack)-8]));
 #else
diff --git a/src/lwp/process.c b/src/lwp/process.c
index a2977fece3..71eebdf523 100644
--- a/src/lwp/process.c
+++ b/src/lwp/process.c
@@ -109,7 +109,9 @@ struct lwp_context *savearea;
 #define LWP_SP 8
 #define LWP_FP 7
 #elif defined(AFS_PARISC_LINUX24_ENV)
-#define LWP_SP 19
+#define LWP_SP 19*2
+	/* really 19 when structure is double, but requires too many changes
+	   below to make a double work */
 #else
 #error Unsupported linux LWP system type.
 #endif