X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Flinux-os.h;h=6f1003cf8dd7270e2ebee82d64280343db588f9b;hb=ed1910efb36f71b5ebe33b5ffffd7195e15644de;hp=f0387e97f3d1bcd535d919f398c6663ca12c6546;hpb=ae09f8fd7765f6cab6ad317a13e27ff22ab0c11e;p=sbcl.git

diff --git a/src/runtime/linux-os.h b/src/runtime/linux-os.h
index f0387e9..6f1003c 100644
--- a/src/runtime/linux-os.h
+++ b/src/runtime/linux-os.h
@@ -39,4 +39,8 @@ typedef int os_vm_prot_t;
 
 #define SIG_MEMORY_FAULT SIGSEGV
 
-#define SIG_STOP_FOR_GC (SIGUSR1)
+/* Note that this must be higher than the highest numbered
+ * synchronously generated signal that we handle (that is SIGSEGV),
+ * due to Linux signal handling pecularities. See thread "Signal
+ * delivery order" from 2009-03-14 on kernel-devel@vger.kernel.org. */
+#define SIG_STOP_FOR_GC (SIGUSR2)