IRC channel logs

<damo22>i think its blocking a smp variant from being released

<damo22>102 free (priv_arg->arg);

<damo22>103 _thread_cleanup ();

<damo22>104 return NULL;

<damo22>105 }

<damo22>it used to crash in free(), i fixed that, but now when this return NULL happens, it returns to entry_point()

<damo22>#0 0x081a0fdb in entry_point ()

<damo22>#1 0x00000000 in ?? ()

<damo22>and continues without exiting

<damo22>then crashes next time i do ifup /dev/eth0

<damo22>after line 104, isnt it supposed to exit netdde?

<damo22>why does continuing after breaking on pthread_exit hang?

<damo22>damn, the ddekit thread cleanup is hard

<damo22>it seems to get into a bad state and i need to reboot

<damo22>it crashes on ifup/down

<damo22>i cant kill -9 netdde.static

<damo22>70 irqhelp_server_loop(ddekit_irq_ctrl[irq].irqhelp);

<damo22>warning: Signal ? does not exist on this system.

<damo22>warning: Pid 533 died with unknown exit status, using SIGKILL.

<damo22>Program terminated with signal SIGKILL, Killed.

<damo22>Thread 9 received signal ?, Unknown signal.

<damo22>0x08186b97 in wrapped_server_loop (arg=0x2000d9f0)

<damo22> at ../../libddekit/interrupt.c:71

<damo22>71 ddekit_irq_ctrl[irq].irq_thread = NULL;

<damo22>(gdb) x/i $pc

<damo22>=> 0x8186b97 <wrapped_server_loop+71>: movl $0x0,0x26fd4(%ebx,%eax,4)

<damo22>what is that??

<damo22>stack corruption?

<damo22>out of stack space => 0x8186b83 <wrapped_server_loop+51>: push 0x26fdc(%ebx,%eax,4)

<youpi>damo22: stack corruption is possible is some thread does bogus stack array access, sure

<youpi>normally, entry_point's call to __pthread_exit cannot return

<youpi>because it calls __pthread_thread_terminate on itself

<damo22>ok i think i figured it out

<youpi>or else it calls abort, which at worse calls the abortion instruction

<damo22>\o/ works

<damo22>without forcing pthread_exit

2024-03-24.log