Hi Matthias, Matthias Grimm <[EMAIL PROTECTED]> wrote: > On Sun, 15 Jan 2006 13:56:00 +0000 (UTC) > Joerg Sommer <[EMAIL PROTECTED]> wrote: > >> I want to increase or decrease the backlight level upon plug in and >> unplug the power supply unit. I achieve this with a script in >> /etc/power/event.d/. But it seams the script hangs in the call of pbbcmd. >> Is this possible? If I enable the call I get a message "INFO: Script >> '/etc/power/pmcs-pbbuttonsd resume ac ram' lauched but killed after 6 >> seconds". I tracked it down to the call of pbbcmd. So what might happen >> there? > > It's a classic deadlock situation. Pbbuttonsd started the script which > started pbbcmd. pbbcmd sent a message to pbbuttonsd and waited for the > result, which won't come because pbbuttonsd waits for the script to > terminate. > > But there is a solution :-) Call pbbcmd with option '-i' and it will > immedately return without waiting for a receipt or an error code.
This does not help: + ltrace -t -e msgget,msgsnd,msgrcv,msgctl pbbcmd -i query TAG_LCDBRIGHTNESS 16:46:21 msgget(0x50424253, 0, 6567, 4, 0xff13dd0) = 0x210000 16:46:21 msgget(6567, 1938, 0x42000422, 4, 0xff4fecc) = 0x2a8002 16:46:21 msgsnd(0x210000, 0x7fc64588, 24, 0, 0xff4fecc) = 0 16:46:21 msgrcv(0x2a8002, 0x7fc665b8, 200, 0, 2048) = -1 16:46:21 msgrcv(0x2a8002, 0x7fc665b8, 200, 0, 2048) = -1 16:46:21 msgrcv(0x2a8002, 0x7fc665b8, 200, 0, 2048) = -1 16:46:21 msgrcv(0x2a8002, 0x7fc665b8, 200, 0, 2048) = -1 ... [35 times] 16:46:25 msgrcv(0x2a8002, 0x7fc665b8, 200, 0, 2048) = -1 16:46:25 msgsnd(0x210000, 0x7fc64578, 8, 0, 0x7fc66500) = 0 16:46:25 msgctl(0x2a8002, 0, 0, 0x10002364, 0xff4fce0) = 0 Der Server antwortete nicht, Timeout. 16:46:25 +++ exited (status 1) +++ Regards, Jörg. -- Die meisten Menschen wollen lieber durch Lob ruiniert als durch Kritik gerettet werden. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
