[racket-dev] JFYI: oops, seg fault
I was editing a file, and this occurred. My reading of this suggests that this involves garbage collection inside of an FFI call, but perhaps *all* GC is inside an FFI call?
Anyhow, there's no evidence to suggest that I can reproduce this, so I suppose this is just JFYI.
John
Process: DrRacket [24202]
Path: /Users/clements/plt/bin/../DrRacket.app/Contents/MacOS/DrRacket
Identifier: org.racket-lang.DrRacket
Version: 5.1.1.6 (5.1.1.6)
Code Type: X86-64 (Native)
Parent Process: bash [19468]
Date/Time: 2011-08-20 13:23:50.946 -0400
OS Version: Mac OS X 10.6.8 (10K549)
Report Version: 6
Interval Since Last Report: 672433 sec
Crashes Since Last Report: 1
Per-App Interval Since Last Report: 113477 sec
Per-App Crashes Since Last Report: 1
Anonymous UUID: 2B5B5A13-9161-4495-BE51-9AEEEA441DE8
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00001e9500001e95
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 ??? 0x00001e9500001e95 0 + 33625298968213
1 Racket 0x0000000100296f9b garbage_collect + 6347
2 Racket 0x0000000100261686 scheme_thread_block + 2150
3 Racket 0x0000000100261c62 scheme_end_atomic + 98
4 Racket 0x0000000100262e86 scheme_end_atomic_can_break + 54
5 Racket 0x000000010028d43c ffi_call_unix64 + 76
6 Racket 0x000000010028e054 ffi_call + 644
7 Racket 0x0000000100280eb7 ffi_do_call + 1335
8 Racket 0x000000010005eeb5 scheme_do_eval + 10837
9 Racket 0x000000010006172f _scheme_apply_multi_from_native + 95
10 ??? 0x00000001013d973c 0 + 4315780924
11 Racket 0x000000010005ea5d scheme_do_eval + 9725
12 Racket 0x000000010006172f _scheme_apply_multi_from_native + 95
13 ??? 0x00000001004cd142 0 + 4300001602
14 Racket 0x000000010005ea5d scheme_do_eval + 9725
15 Racket 0x000000010007c543 apply_k + 179
16 Racket 0x000000010007d126 scheme_top_level_do_worker + 1046
17 Racket 0x00000001002608d1 start_child + 1153
18 Racket 0x000000010026459a make_subprocess + 570
19 Racket 0x000000010026487e scheme_thread_w_details + 446
Thread 1:
0 libSystem.B.dylib 0x00007fff8a275d7a mach_msg_trap + 10
1 libSystem.B.dylib 0x00007fff8a2763ed mach_msg + 59
2 Racket 0x00000001002903e6 exception_thread + 134
3 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
4 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 2:
0 libSystem.B.dylib 0x00007fff8a2d799e __sigwait + 10
1 libSystem.B.dylib 0x00007fff8a2d7977 sigwait + 73
2 Racket 0x00000001001a39d1 mz_proc_thread_signal_worker + 161
3 Racket 0x0000000100161400 mzrt_thread_stub + 96
4 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
5 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 3:
0 libSystem.B.dylib 0x00007fff8a2b0a6a __semwait_signal + 10
1 libSystem.B.dylib 0x00007fff8a2b4881 _pthread_cond_wait + 1286
2 Racket 0x00000001001a8d04 green_thread_timer + 148
3 Racket 0x0000000100161400 mzrt_thread_stub + 96
4 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
5 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 4: Dispatch queue: com.apple.libdispatch-manager
0 libSystem.B.dylib 0x00007fff8a28ec0a kevent + 10
1 libSystem.B.dylib 0x00007fff8a290add _dispatch_mgr_invoke + 154
2 libSystem.B.dylib 0x00007fff8a2907b4 _dispatch_queue_invoke + 185
3 libSystem.B.dylib 0x00007fff8a2902de _dispatch_worker_thread2 + 252
4 libSystem.B.dylib 0x00007fff8a28fc08 _pthread_wqthread + 353
5 libSystem.B.dylib 0x00007fff8a28faa5 start_wqthread + 13
Thread 5: com.apple.CFSocket.private
0 libSystem.B.dylib 0x00007fff8a2b9932 select$DARWIN_EXTSN + 10
1 com.apple.CoreFoundation 0x00007fff81482498 __CFSocketManager + 824
2 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
3 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 6:
0 libSystem.B.dylib 0x00007fff8a2b0a6a __semwait_signal + 10
1 libSystem.B.dylib 0x00007fff8a2b4881 _pthread_cond_wait + 1286
2 Racket 0x0000000100160d5b mzrt_sema_wait + 59
3 Racket 0x0000000100296ac6 garbage_collect + 5110
4 Racket 0x0000000100261686 scheme_thread_block + 2150
5 Racket 0x0000000100261dcc scheme_block_until + 332
6 Racket 0x00000001002635c5 do_sync + 1173
7 ??? 0x00000001004cd215 0 + 4300001813
8 Racket 0x000000010005ea5d scheme_do_eval + 9725
9 Racket 0x000000010006172f _scheme_apply_multi_from_native + 95
10 ??? 0x00000001004cd142 0 + 4300001602
11 Racket 0x000000010005ea5d scheme_do_eval + 9725
12 Racket 0x000000010007c543 apply_k + 179
13 Racket 0x000000010007d1d6 scheme_top_level_do_worker + 1222
14 Racket 0x00000001001a85fd place_start_proc_after_stack + 1373
15 Racket 0x00000001001a8674 place_start_proc + 100
16 Racket 0x0000000100161400 mzrt_thread_stub + 96
17 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
18 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 7:
0 libSystem.B.dylib 0x00007fff8a2b0a6a __semwait_signal + 10
1 libSystem.B.dylib 0x00007fff8a2b4881 _pthread_cond_wait + 1286
2 Racket 0x00000001001a8d04 green_thread_timer + 148
3 Racket 0x0000000100161400 mzrt_thread_stub + 96
4 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
5 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 8:
0 libSystem.B.dylib 0x00007fff8a2b0a6a __semwait_signal + 10
1 libSystem.B.dylib 0x00007fff8a2b4881 _pthread_cond_wait + 1286
2 Racket 0x00000001001a8afb pt_sema_wait + 43
3 Racket 0x00000001001a8b3c do_watch + 28
4 libSystem.B.dylib 0x00007fff8a2aefd6 _pthread_start + 331
5 libSystem.B.dylib 0x00007fff8a2aee89 thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x00001e9500001e95 rbx: 0x0000000104cbb8e0 rcx: 0x0000000000000000 rdx: 0x0000000101700fc8
rdi: 0x0000000104cbb8e0 rsi: 0x0000000100518440 rbp: 0x00007fff5fbf80d0 rsp: 0x00007fff5fbf8048
r8: 0x0000000000000001 r9: 0x000000013550bcd0 r10: 0x00000001014aef80 r11: 0x0000000000000003
r12: 0x0000000104cbb8d8 r13: 0x000000010025b2a0 r14: 0x0000000100518440 r15: 0x0000000100825c00
rip: 0x00001e9500001e95 rfl: 0x0000000000010206 cr2: 0x00001e9500001e95
Binary Images:
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0x7fff8a5ba000 - 0x7fff8a5ddfff com.apple.opencl 12.3.6 (12.3.6) <42FA5783-EB80-1168-4015-B8C68F55842F> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
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Model: MacBookAir3,2, BootROM MBA31.0061.B01, 2 processors, Intel Core 2 Duo, 2.13 GHz, 4 GB, SMC 1.66f55
Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD1), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en0
Serial ATA Device: APPLE SSD TS256C, 233.76 GB
USB Device: FaceTime Camera (Built-in), 0x05ac (Apple Inc.), 0x850a, 0x24600000 / 2
USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0x26100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x04500000 / 3
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x821b, 0x04530000 / 5
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x023f, 0x04300000 / 2
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