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authorChristian Krinitsin <mail@krinitsin.com>2025-07-07 17:23:11 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-07 17:23:11 +0000
commitc50b0c4da17b6e83640e4ed2380fffb5f507c846 (patch)
treeb4f203fce1380e2ea3578a784bb8ee060fe42cbd /results/classifier/zero-shot-user-mode/output/instruction/2078
parent61361f925d4914a6608a0076e64cc2399311ed5f (diff)
downloademulator-bug-study-c50b0c4da17b6e83640e4ed2380fffb5f507c846.tar.gz
emulator-bug-study-c50b0c4da17b6e83640e4ed2380fffb5f507c846.zip
add zero-shot results
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+instruction: 0.490
+runtime: 0.352
+syscall: 0.159
+
+
+
+Qemu crashes with SIGFPE on certain trapping arithmetic operations on m68k target
+Description of problem:
+I recently ported NetBSD to the Qemu m68k "virt" platform, and this was discovered when running NetBSD's automated tests.  Certain arithmetic operation that will trap in the guest will crash Qemu.  First case encountered is below.
+Steps to reproduce:
+1. Compile and run the following program in the m68k guest:
+
+```
+virt68k:thorpej 3$ cat crash-qemu.c                                            
+#include <limits.h>
+#include <stdlib.h>
+
+int divisor = -1;
+
+int
+main(int argc, char *argv[])
+{
+
+	if (argc > 1)
+		divisor = atoi(argv[1]);
+
+	return INT_MIN / divisor;
+}
+virt68k:thorpej 4$ 
+```
+
+Another minimal case would be:
+
+```
+move.l #-2147483648,%d0
+move.l #-1,%d1
+divsl.l %d1,%d1:%d0
+```
+Additional information:
+