[OpenSIPS-Users] mi_fifo lock on reply after a period of time in 3.1.3

[Bogdan-Andrei Iancu]

OK, getting closer :). Let's see who is the proc ID 46.

In GDB, just do

 > p pt[46]

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
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On 10/7/21 3:37 PM, Andrew Yager wrote:
> Hi Bogdan-Andrei,
>
> OK; my non expert opinion is that these two lines in ipc.c may be a 
> pointer to a "symptom" of the problem…
>
> // FIXME - we should check if the destination process really listens
> // for read, otherwise we may end up filling in the pipe and block
>
> but, I really want to know why it's blocking on the IPC comms before that.
>
> Here's the BT.
>
> (gdb) bt full
> #0  0x00007f1e4ce9b297 in __libc_write (fd=fd at entry=195, 
> buf=buf at entry=0x7fffc86261b0, nbytes=nbytes at entry=24) at 
> ../sysdeps/unix/sysv/linux/write.c:26
>         resultvar = 18446744073709551104
>         __arg3 = <optimized out>
>         _a2 = <optimized out>
>         sc_ret = <optimized out>
>         __arg1 = <optimized out>
>         _a3 = <optimized out>
>         sc_cancel_oldtype = <optimized out>
>         resultvar = <optimized out>
>         resultvar = <optimized out>
>         __arg2 = <optimized out>
>         _a1 = <optimized out>
> #1  0x000055ddea5cad33 in __ipc_send_job (payload2=0x0, 
> payload1=0x55ddea590760 <rpc_get_pkg_stats>, type=0, fd=195) at ipc.c:171
>         job = {snd_proc = 1, handler_type = 0, payload1 = 
> 0x55ddea590760 <rpc_get_pkg_stats>, payload2 = 0x0}
>         n = <optimized out>
>         job = <optimized out>
>         n = <optimized out>
>         __FUNCTION__ = "__ipc_send_job"
> #2  ipc_send_rpc (dst_proc=dst_proc at entry=46, 
> rpc=rpc at entry=0x55ddea590760 <rpc_get_pkg_stats>, 
> param=param at entry=0x0) at ipc.c:194

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