Error: fuzzing process hung or terminated unexpectedly: exit status 2 and EOF

[Alleysira]

Hello, Marius @MariusVanDerWijden.

Apologies for the interruption.

I'm interested in FuzzyVM and I I've been exploring this a little bit, but it seems that when I run FuzzyVM with ./FuzzyVM run for a while, it will fail and exit. The details are as follows:

user:~/FuzzyVM$ ./FuzzyVM run
fuzz: elapsed: 23s, execs: 4398 (0/sec), new interesting: 2 (total: 304)
--- FAIL: FuzzVM (23.23s)
    fuzzing process hung or terminated unexpectedly: exit status 2
    Failing input written to testdata/fuzz/FuzzVM/447ffa6326d3330f
    To re-run:
    go test -run=FuzzVM/447ffa6326d3330f
FAIL
exit status 1
FAIL    github.com/MariusVanDerWijden/FuzzyVM/fuzzer    25.212s
exit status 1
user:~/FuzzyVM$ cat fuzzer/testdata/fuzz/FuzzVM/447ffa6326d3330f
go test fuzz v1
[]byte("ۅ\xe2\x9aŸ\xc2\x7f\xb2O/s(\"\x8a~\xf9\xf9\xf9\xf9\xf9\xf9\xf9\x1f\x8aBL\xf52H\xfa^\x9c\xad\xdf\xf4t\xaa\xcc")

I also tried with go test, which is not helpful.

user:~/FuzzyVM$ go test -run=FuzzVM/447ffa6326d3330f
?       github.com/MariusVanDerWijden/FuzzyVM   [no test files]

Similar here:

user:~/FuzzyVM$ ./FuzzyVM run
fuzz: elapsed: 57s, execs: 8974 (0/sec), new interesting: 7 (total: 312)
fuzz: elapsed: 1m0s, execs: 8974 (0/sec), new interesting: 7 (total: 312)
fuzz: elapsed: 1m3s, execs: 10047 (358/sec), new interesting: 7 (total: 312)
fuzz: elapsed: 1m5s, execs: 10047 (0/sec), new interesting: 7 (total: 312)
--- FAIL: FuzzVM (65.16s)
    fuzzing process hung or terminated unexpectedly while minimizing: EOF
    Failing input written to testdata/fuzz/FuzzVM/c0310ba9ac7c433a
    To re-run:
    go test -run=FuzzVM/c0310ba9ac7c433a
FAIL
exit status 1
FAIL    github.com/MariusVanDerWijden/FuzzyVM/fuzzer    67.166s
exit status 1
user:~/FuzzyVM$ cat fuzzer/testdata/fuzz/FuzzVM/c0310ba9ac7c433a
go test fuzz v1
[]byte("\xf99<}\x83G1DE\x05\\\x8f\xa5\xd78\x1f\x99t\xb6Ζ\x00\x96\xb8\xf5\xc1\xa06\x13\xfa;\xd0\x1eb<\x993N\\\xfb5>\xc2/\x0e\x90\x15\xf8\x9b\xb8i\xbb\xeb\xf9\x01\x1a\xa0\xe3M\xa4\xce\x0f\x17\xed4\xfeQ\x90CS\a")
alleysira@lthpc:~/FuzzyVM$ go test -run=FuzzVM/c0310ba9ac7c433a
?       github.com/MariusVanDerWijden/FuzzyVM   [no test files]

I'm curious if there's a way to keep the fuzzer running without being interrupted by errors.

Thank you for your time and attention!

[MariusVanDerWijden]

Ah the fuzzer runs out of time while trying to minimize a test case (which is a binary search essentially). Fastest fix is to run it on a bigger machine. I can also try to make the minimization quicker, but I have very little time to work on FuzzyVM at the moment

[Alleysira]

Ah the fuzzer runs out of time while trying to minimize a test case (which is a binary search essentially). Fastest fix is to run it on a bigger machine. I can also try to make the minimization quicker, but I have very little time to work on FuzzyVM at the moment

Thanks for your time.