Closed awnumar closed 1 year ago
Describe the bug
This example crashes sporadically on my system.
To Reproduce
go test -v -count=10 ./examples/deadlock
Traces
=== RUN TestPanicsPoC [] [14 227 172 214 47 31 152 84 236 122 1 107 223 116 37 0 158 52 188 103 100 78 201 60 202 48 122 169 17 135 212 236] panic: open verify fail goroutine 26 [running]: github.com/awnumar/memguard/examples/deadlock.immediateOpen(0x59ed20, 0xc000054420, 0xc00000e060, 0xc000014440, 0x20, 0x20) /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:80 +0x26e github.com/awnumar/memguard/examples/deadlock.OpenEnclave.func1(0xc000010230, 0xa, 0xa, 0xc00001c260, 0xc000136000, 0xa, 0xa, 0xa, 0x59ed20, 0xc000054420) /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:40 +0xe8 created by github.com/awnumar/memguard/examples/deadlock.OpenEnclave /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:32 +0x2bf FAIL github.com/awnumar/memguard/examples/deadlock 0.010s FAIL
=== RUN TestPanicsPoC panic: runtime error: index out of range [0] with length 0 goroutine 266 [running]: github.com/awnumar/memguard/core.(*Coffer).View(0xc0001082a0, 0x0, 0x0, 0x0) /home/awn/projects/src/go/src/github.com/awnumar/memguard/core/coffer.go:123 +0x207 github.com/awnumar/memguard/core.Open(0xc0000a80c0, 0x0, 0x0, 0x0) /home/awn/projects/src/go/src/github.com/awnumar/memguard/core/enclave.go:101 +0x60 github.com/awnumar/memguard.(*Enclave).Open(0xc0000a2038, 0x0, 0x0, 0x0) /home/awn/projects/src/go/src/github.com/awnumar/memguard/enclave.go:43 +0x32 github.com/awnumar/memguard/examples/deadlock.openVerify(0xc0000a2038, 0xc0000a6240, 0x20, 0x20, 0x0, 0x0) /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:55 +0x58 github.com/awnumar/memguard/examples/deadlock.immediateOpen.func1(0xc0000a2038, 0xc0000a6240, 0x20, 0x20, 0xc000180960) /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:71 +0x49 created by github.com/awnumar/memguard/examples/deadlock.immediateOpen /home/awn/projects/src/go/src/github.com/awnumar/memguard/examples/deadlock/poc.go:70 +0xc8 FAIL github.com/awnumar/memguard/examples/deadlock 0.068s
System (please complete the following information):
Linux 5.6.15-300.fc32.x86_64
master
go version go1.14.3 linux/amd64
Setting ulimit -l to a high value prevents both of these panics
ulimit -l
Describe the bug
This example crashes sporadically on my system.
To Reproduce
go test -v -count=10 ./examples/deadlock
Traces
System (please complete the following information):
Linux 5.6.15-300.fc32.x86_64
master
go version go1.14.3 linux/amd64