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guanx 11-20-2012 02:28 PM
SAK kills all
 
In Slackware 14 (and also earlier versions of course) the secure attention key (sak) kills too many processes. Is there any plan to repair it?

Code:
[  91.065206] SAK: killed process 1720 (agetty): task_session(p)==tty->session
[  91.065265] SAK: killed process 1503 (console-kit-dae): fd#9 opened to the tty
[  91.065336] SAK: killed process 1506 (console-kit-dae): fd#9 opened to the tty
[  91.065338] SAK: killed process 1508 (console-kit-dae): fd#9 opened to the tty
[  91.065339] SAK: killed process 1509 (console-kit-dae): fd#9 opened to the tty
[  91.065340] SAK: killed process 1510 (console-kit-dae): fd#9 opened to the tty
[  91.065342] SAK: killed process 1511 (console-kit-dae): fd#9 opened to the tty
[  91.065343] SAK: killed process 1512 (console-kit-dae): fd#9 opened to the tty
[  91.065344] SAK: killed process 1514 (console-kit-dae): fd#9 opened to the tty
[  91.065345] SAK: killed process 1515 (console-kit-dae): fd#9 opened to the tty
[  91.065347] SAK: killed process 1516 (console-kit-dae): fd#9 opened to the tty
[  91.065348] SAK: killed process 1517 (console-kit-dae): fd#9 opened to the tty
[  91.065349] SAK: killed process 1518 (console-kit-dae): fd#9 opened to the tty
[  91.065351] SAK: killed process 1519 (console-kit-dae): fd#9 opened to the tty
[  91.065352] SAK: killed process 1520 (console-kit-dae): fd#9 opened to the tty
[  91.065353] SAK: killed process 1521 (console-kit-dae): fd#9 opened to the tty
[  91.065355] SAK: killed process 1522 (console-kit-dae): fd#9 opened to the tty
[  91.065356] SAK: killed process 1523 (console-kit-dae): fd#9 opened to the tty
[  91.065357] SAK: killed process 1524 (console-kit-dae): fd#9 opened to the tty
[  91.065358] SAK: killed process 1525 (console-kit-dae): fd#9 opened to the tty
[  91.065360] SAK: killed process 1526 (console-kit-dae): fd#9 opened to the tty
[  91.065361] SAK: killed process 1527 (console-kit-dae): fd#9 opened to the tty
[  91.065362] SAK: killed process 1528 (console-kit-dae): fd#9 opened to the tty
[  91.065363] SAK: killed process 1529 (console-kit-dae): fd#9 opened to the tty
[  91.065365] SAK: killed process 1530 (console-kit-dae): fd#9 opened to the tty
[  91.065366] SAK: killed process 1531 (console-kit-dae): fd#9 opened to the tty
[  91.065367] SAK: killed process 1532 (console-kit-dae): fd#9 opened to the tty
[  91.065369] SAK: killed process 1533 (console-kit-dae): fd#9 opened to the tty
[  91.065370] SAK: killed process 1534 (console-kit-dae): fd#9 opened to the tty
[  91.065371] SAK: killed process 1535 (console-kit-dae): fd#9 opened to the tty
[  91.065372] SAK: killed process 1536 (console-kit-dae): fd#9 opened to the tty
[  91.065374] SAK: killed process 1537 (console-kit-dae): fd#9 opened to the tty
[  91.065375] SAK: killed process 1538 (console-kit-dae): fd#9 opened to the tty
[  91.065376] SAK: killed process 1539 (console-kit-dae): fd#9 opened to the tty
[  91.065378] SAK: killed process 1540 (console-kit-dae): fd#9 opened to the tty
[  91.065379] SAK: killed process 1541 (console-kit-dae): fd#9 opened to the tty
[  91.065380] SAK: killed process 1542 (console-kit-dae): fd#9 opened to the tty
[  91.065381] SAK: killed process 1543 (console-kit-dae): fd#9 opened to the tty
[  91.065383] SAK: killed process 1544 (console-kit-dae): fd#9 opened to the tty
[  91.065384] SAK: killed process 1545 (console-kit-dae): fd#9 opened to the tty
[  91.065385] SAK: killed process 1546 (console-kit-dae): fd#9 opened to the tty
[  91.065387] SAK: killed process 1547 (console-kit-dae): fd#9 opened to the tty
[  91.065388] SAK: killed process 1548 (console-kit-dae): fd#9 opened to the tty
[  91.065389] SAK: killed process 1549 (console-kit-dae): fd#9 opened to the tty
[  91.065390] SAK: killed process 1550 (console-kit-dae): fd#9 opened to the tty
[  91.065392] SAK: killed process 1551 (console-kit-dae): fd#9 opened to the tty
[  91.065393] SAK: killed process 1552 (console-kit-dae): fd#9 opened to the tty
[  91.065394] SAK: killed process 1553 (console-kit-dae): fd#9 opened to the tty
[  91.065396] SAK: killed process 1554 (console-kit-dae): fd#9 opened to the tty
[  91.065397] SAK: killed process 1555 (console-kit-dae): fd#9 opened to the tty
[  91.065398] SAK: killed process 1556 (console-kit-dae): fd#9 opened to the tty
[  91.065400] SAK: killed process 1557 (console-kit-dae): fd#9 opened to the tty
[  91.065401] SAK: killed process 1558 (console-kit-dae): fd#9 opened to the tty
[  91.065402] SAK: killed process 1559 (console-kit-dae): fd#9 opened to the tty
[  91.065403] SAK: killed process 1560 (console-kit-dae): fd#9 opened to the tty
[  91.065405] SAK: killed process 1561 (console-kit-dae): fd#9 opened to the tty
[  91.065406] SAK: killed process 1562 (console-kit-dae): fd#9 opened to the tty
[  91.065407] SAK: killed process 1563 (console-kit-dae): fd#9 opened to the tty
[  91.065409] SAK: killed process 1564 (console-kit-dae): fd#9 opened to the tty
[  91.065410] SAK: killed process 1565 (console-kit-dae): fd#9 opened to the tty
[  91.065411] SAK: killed process 1566 (console-kit-dae): fd#9 opened to the tty
[  91.065412] SAK: killed process 1567 (console-kit-dae): fd#9 opened to the tty
[  91.065414] SAK: killed process 1568 (console-kit-dae): fd#9 opened to the tty
[  91.065415] SAK: killed process 1572 (gdbus): fd#9 opened to the tty
[  91.065416] SAK: killed process 1748 (gmain): fd#9 opened to the tty
[  91.065417] SAK: killed process 2222 (console-kit-dae): fd#9 opened to the tty
[  91.065434] SAK: killed process 1650 (gpm): fd#0 opened to the tty
[  91.065440] SAK: killed process 1720 (agetty): task_session(p)==tty->session

Didier Spaier 11-22-2012 01:37 AM
According to Andrew Morton in /usr/src/linux/Documentation/SAK.txt:
Code:
2: On the PC keyboard, SAK kills all applications which have
  /dev/console opened.

  Unfortunately this includes a number of things which you don't
  actually want killed.  This is because these applications are
  incorrectly holding /dev/console open.  Be sure to complain to your
  Linux distributor about this!

  You can identify processes which will be killed by SAK with the
  command

    # ls -l /proc/[0-9]*/fd/* | grep console

guanx 11-22-2012 03:41 AM
Quote:
Originally Posted by Didier Spaier (Post 4834551)
According to Andrew Morton in /usr/src/linux/documentation/SAK.txt:
Code:
...  Be sure to complain to your
  Linux distributor about this!
...
Yes I did and am and probably will.

allend 11-22-2012 05:56 AM
When I look at my system, the only proceses that would be killed by SAK would be gpm and console-kit-daemon. Is that really too many processes?

guanx 11-22-2012 07:44 AM
Quote:
Originally Posted by allend (Post 4834706)
When I look at my system, the only proceses that would be killed by SAK would be gpm and console-kit-daemon. Is that really too many processes?
Sorry I forgot to mark process with red color so that it could not get confused with program.


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