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+[PPC] SegFault due to Stack Overflow in E500
+
+
+I am getting a Segmentation Fault while simulating a PowerPC e500. I've tried to debug the problem and I've found that it occurs when you have a 0 value decrementer. The function trace is the following:
+
+1) __cpu_ppc_store_decr (ppc.c) is called with value = 0 and raise_excp=booke_decr_cb;
+2) Since value < 3, booke_decr_cb is called;
+3) booke_decr_cb then calls booke_update_irq() and cpu_ppc_store_decr();
+4) cpu_ppc_store_decr calls __cpu_ppc_store_decr
+
+You're stuck on this infinite cycle until your stack overflows eventually.
+
+Command Line:
+qemu-system-ppc -cpu e500v2 -d guest_errors,unimp -m 2048 -M ppce500 -nographic -bios ../cc/share/qem
+u/u-boot.e500 -kernel XKYAPP.exe
+
+Platform where the bug occured: Bash ubuntu on Windows;
+
+Revision where the bug was found: e3571ae30cd26d19efd4554c25e32ef64d6a36b3 (16 Set 2016)
+
+
+
+Thanks!
+
+Do you know what the DECAR SPR contains at that point in time? I guess it's 0 ... but what does that mean here? Should the decrementer be stopped?
+
+[Expired for QEMU because there has been no activity for 60 days.]
+