Comments (6)
rofl0r
commented on July 22, 2024
maybe. could you enable core dumps, rebuild microsocks with debug info make CFLAGS="-O0 -g3", and then load the core with gdb next time it happens ? that would give us a backtrace pointing to where it happens.
does this happen only with the high fd limit ?
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clyfish
commented on July 22, 2024
Version: be54581
┌──Register group: general─────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│rax 0x0 0 rbx 0x0 0 │
│rcx 0x7fcf8f7c54fd 140529442247933 rdx 0x0 0 │
│rsi 0x0 0 rdi 0x0 0 │
│rbp 0x7fcf8c1c9f90 0x7fcf8c1c9f90 rsp 0x7fcf8c1c9ae0 0x7fcf8c1c9ae0 │
│r8 0x7fcf8c1ca700 140529385645824 r9 0x18 24 │
│r10 0x10 16 r11 0x0 0 │
│r12 0x0 0 r13 0x7fcf8c1ca9c0 140529385646528 │
│r14 0x7fcf8c1ca700 140529385645824 r15 0x0 0 │
│rip 0x401e89 0x401e89 <clientthread+474> eflags 0x10217 [ CF PF AF IF RF ] │
│cs 0x33 51 ss 0x2b 43 │
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│0x401e75 <clientthread+454> cmpl $0xffffffff,-0x4(%rbp) │
│0x401e79 <clientthread+458> je 0x401e85 <clientthread+470> │
│0x401e7b <clientthread+460> mov -0x4(%rbp),%eax │
│0x401e7e <clientthread+463> mov %eax,%edi │
│0x401e80 <clientthread+465> callq 0x400eb0 <close@plt> │
│0x401e85 <clientthread+470> mov -0x10(%rbp),%rax │
>│0x401e89 <clientthread+474> mov 0x24(%rax),%eax │
│0x401e8c <clientthread+477> mov %eax,%edi │
│0x401e8e <clientthread+479> callq 0x400eb0 <close@plt> │
│0x401e93 <clientthread+484> mov -0x10(%rbp),%rax │
│0x401e97 <clientthread+488> movl $0x1,0x2c(%rax) │
└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
multi-thre Thread 0x7fcf8 In: clientthread Line: ?? PC: 0x401e89
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rofl0r
commented on July 22, 2024
why are you testing a version from 2019 ? use latest git. also i don't see a usable backtrace in your paste. compile with -g3 to get source-level debug info instead of x86 asm.
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clyfish
commented on July 22, 2024
@rofl0r Because it was launched three years ago.
Crashed on this line:
Line 335 in be54581
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rofl0r
commented on July 22, 2024
well, i studied the code again and can't see anything that could cause this. i'd suggest you get the latest code, rebuild it with address sanitizer, and wait for the next crash, which will hopefully be accompanied with useful output from asan.
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clyfish
commented on July 22, 2024
OK.
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Related Issues (20)
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