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[defect]: Segmentation fault in multi-threaded mode with rlm_perl module for accounting #5327

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ali2024e opened this issue May 30, 2024 · 0 comments
Open

[defect]: Segmentation fault in multi-threaded mode with rlm_perl module for accounting #5327

ali2024e opened this issue May 30, 2024 · 0 comments
Labels
defect category: a defect or misbehaviour

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@ali2024e
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What type of defect/bug is this?

Crash or memory corruption (segv, abort, etc...)

How can the issue be reproduced?

I am encountering a segmentation fault every time I run the FreeRADIUS server in multi-threaded mode with the rlm_perl module used for accounting, this issue reproduce even with 10 requests per second. When the server is started in single-threaded mode, the issue does not occur. However, running in multi-threaded mode is necessary for performance reasons.

Steps to Reproduce:
Configure FreeRADIUS to use the rlm_perl module for accounting.
Start the FreeRADIUS server in multi-threaded mode.
Perform accounting operations that invoke the rlm_perl module.
Observe the segmentation fault.

Expected Behavior:
The FreeRADIUS server should operate correctly in multi-threaded mode without causing a segmentation fault.

Log output from the FreeRADIUS daemon

Info: Core dumps are enabled
Warning: Ignoring "response_window = 20.000000", forcing to "response_window = 5.000000"
Warning: Ignoring "response_window = 6.000000", forcing to "response_window = 5.000000"
Info: Debugger not attached
Info: Perl version: 5.26.0
..............
CAUGHT SIGNAL: Segmentation fault
Calling: gdb -silent -x /etc/raddb_accounting/panic.gdb /usr/sbin/radiusd 5077 2>&1 | tee /var/log/radius_accounting/gdb-radiusd-5077.log
Panic action exited with 256
CAUGHT SIGNAL: Segmentation fault
Calling: gdb -silent -x /etc/raddb_accounting/panic.gdb /usr/sbin/radiusd 5280 2>&1 | tee /var/log/radius_accounting/gdb-radiusd-5280.log
Panic action exited with 256
CAUGHT SIGNAL: Segmentation fault
Calling: gdb -silent -x /etc/raddb_accounting/panic.gdb /usr/sbin/radiusd 5670 2>&1 | tee /var/log/radius_accounting/gdb-radiusd-5670.log
Panic action exited with 256

Relevant log output from client utilities

No response

Backtrace from LLDB or GDB

Reading symbols from /usr/sbin/radiusd...
Reading symbols from /usr/lib/debug/usr/sbin/radiusd-3.0.25-150400.4.4.1.x86_64.debug...
Attaching to program: /usr/sbin/radiusd, process 5670
[New LWP 5676]
[New LWP 5677]
[New LWP 5678]
[New LWP 5679]
[New LWP 5680]
[New LWP 5681]
[New LWP 5682]
[New LWP 5683]
[New LWP 5684]
[New LWP 5686]
[New LWP 5687]
[New LWP 5688]
[New LWP 5689]
[New LWP 5690]
[New LWP 5691]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007fbf2250176f in wait4 () from /lib64/libc.so.6
No symbol table info available.
No symbol table info available.

Thread 16 (Thread 0x7fbf127fc700 (LWP 5691) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc8ab6d0) at src/main/threads.c:755
        self = 0x5602fc8ab6d0
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 15 (Thread 0x7fbf12ffd700 (LWP 5690) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc873bc0) at src/main/threads.c:755
        self = 0x5602fc873bc0
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 14 (Thread 0x7fbf137fe700 (LWP 5689) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc881f30) at src/main/threads.c:755
        self = 0x5602fc881f30
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 13 (Thread 0x7fbf13fff700 (LWP 5688) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc8a8d70) at src/main/threads.c:755
        self = 0x5602fc8a8d70
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 12 (Thread 0x7fbf1886f700 (LWP 5687) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fbfc7e20) at src/main/threads.c:755
        self = 0x5602fbfc7e20
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 11 (Thread 0x7fbf1e15d700 (LWP 5686) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fbfa8f60) at src/main/threads.c:755
        self = 0x5602fbfa8f60
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 10 (Thread 0x7fbf19070700 (LWP 5684) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc8aba30) at src/main/threads.c:755
        self = 0x5602fc8aba30
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 9 (Thread 0x7fbf19871700 (LWP 5683) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc8ab8b0) at src/main/threads.c:755
        self = 0x5602fc8ab8b0
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 8 (Thread 0x7fbf1a072700 (LWP 5682) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc8ab730) at src/main/threads.c:755
        self = 0x5602fc8ab730
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 7 (Thread 0x7fbf1a8f4700 (LWP 5681) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc88ad60) at src/main/threads.c:755
        self = 0x5602fc88ad60
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 6 (Thread 0x7fbf1b0f5700 (LWP 5680) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc21d4d0) at src/main/threads.c:755
        self = 0x5602fc21d4d0
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 5 (Thread 0x7fbf1b8f6700 (LWP 5679) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fc7bfa10) at src/main/threads.c:755
        self = 0x5602fc7bfa10
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 4 (Thread 0x7fbf1c159700 (LWP 5678) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fbf94ba0) at src/main/threads.c:755
        self = 0x5602fbf94ba0
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 3 (Thread 0x7fbf1c95a700 (LWP 5677) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fbf9d000) at src/main/threads.c:755
        self = 0x5602fbf9d000
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 2 (Thread 0x7fbf1d15b700 (LWP 5676) "radiusd"):
#0  0x00007fbf22a635f4 in do_futex_wait.constprop () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007fbf22a636f8 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
No symbol table info available.
#2  0x00005602f9f278c0 in request_handler_thread (arg=0x5602fbfa4930) at src/main/threads.c:755
        self = 0x5602fbfa4930
        re_wait = <optimized out>
#3  0x00007fbf22a596ea in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fbf22537a8f in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 1 (Thread 0x7fbf23a03040 (LWP 5670) "radiusd"):
#0  0x00007fbf2250176f in wait4 () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007fbf22478bc7 in do_system () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007fbf23a2497f in fr_fault () from /usr/lib64/freeradius/libfreeradius-radius.so
No symbol table info available.
#3  0x00007fbf23a24a8f in ?? () from /usr/lib64/freeradius/libfreeradius-radius.so
No symbol table info available.
#4  0x00007fbf22e7a568 in _talloc_free () from /usr/lib64/libtalloc.so.2
No symbol table info available.
#5  0x00007fbf23a40d44 in fr_event_delete () from /usr/lib64/freeradius/libfreeradius-radius.so
No symbol table info available.
#6  0x00007fbf23a40f9e in fr_event_run () from /usr/lib64/freeradius/libfreeradius-radius.so
No symbol table info available.
#7  0x00007fbf23a4140f in fr_event_loop () from /usr/lib64/freeradius/libfreeradius-radius.so
No symbol table info available.
#8  0x00005602f9f30b21 in radius_event_process () at src/main/process.c:6305
No locals.
#9  0x00005602f9f07f05 in main (argc=<optimized out>, argv=<optimized out>) at src/main/radiusd.c:641
        rcode = 0
        status = <optimized out>
        argval = <optimized out>
        spawn_flag = true
        display_version = false
        flag = 0
        from_child = {-1, -1}
        p = <optimized out>
        state = 0x5602f9f6cc60 <global_state>
        autofree = 0x5602fbcc6b60
A debugging session is active.

        Inferior 1 [process 5670] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
[Inferior 1 (process 5670) detached]
@ali2024e ali2024e added the defect category: a defect or misbehaviour label May 30, 2024
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@ali2024e