GHCi segfaults with +RTS -Di after hitting a breakpoint
Steps to reproduce:
- Compile stage2 with
-debug
- Run GHCi with
+RTS -Di
- Load an interpreted module with a definition, set a breakpoint on the definition
- Evaluate the definition
GHCi crashes with a segfault. Backtrace:
#0 0x00007ffff18bcaa9 in disInstr (bco=0x4200013f30, pc=1) at rts/Disassembler.c:71
#1 0x00007ffff18c89e9 in interpretBCO (cap=0x7ffff19431c0 <MainCapability>) at rts/Interpreter.c:986
#2 0x00007ffff18d19fe in schedule (initialCapability=0x7ffff19431c0 <MainCapability>, task=0x7fffe0000910) at rts/Schedule.c:471
#3 0x00007ffff18d4ee2 in scheduleWorker (cap=0x7ffff19431c0 <MainCapability>, task=0x7fffe0000910) at rts/Schedule.c:2553
#4 0x00007ffff18ccab8 in workerStart (task=0x7fffe0000910) at rts/Task.c:444
#5 0x00007ffff0c3c6ba in start_thread (arg=0x7fffee9aa700) at pthread_create.c:333
#6 0x00007ffff06f241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
in this line:
71 debugBelch(" %s\n", ((CostCentre*)(literals[instrs[pc+3]]))->label);
literals[instrs[pc+3]]
is null.
Trac metadata
Trac field | Value |
---|---|
Version | 8.5 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |