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location London
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visits member for 1 year, 7 months
seen Apr 8 at 21:28

Apr
17
awarded  Notable Question
Jan
2
awarded  Popular Question
Dec
9
accepted Could not get a command to work with bash -c
Dec
9
revised Could not get a command to work with bash -c
added 2 characters in body
Dec
9
asked Could not get a command to work with bash -c
Nov
26
comment system went unresponsive and had to hard reboot
since it is a kworker process that gets tainted, is it not possible to gain attention from cpu at all? does kernel stop processing any more interrupts from keyboard/mouse? is there a way to kill this kworker process when it goes mad; last few times i had to hard reboot my system.
Nov
26
comment system went unresponsive and had to hard reboot
@slm i have read all your links and i have researched some more but i could not resolve the issue. 'iwlwifi' module which is packaged as part of /boot/initrd does not load on boot anymore. if iwlwifi gets loaded, i have a configuration in modprobe.d that disable 802.11n. on lsmod i find wireless related modules, brcmsmac and mac80211. brcmsmac seems to support 802.11n and if i rmmod it, then my wifi is completely disabled. so i am not sure whether there is a kernel module available/loaded to support other modes of 802.11 other than 802.11n
Nov
23
revised system went unresponsive and had to hard reboot
deleted 8439 characters in body
Nov
20
revised applications that would benefit having a 64bit Os on a 64bit cpu with maximum of 4gb ram
rephrased question and title
Nov
19
asked applications that would benefit having a 64bit Os on a 64bit cpu with maximum of 4gb ram
Nov
18
comment system went unresponsive and had to hard reboot
@slm-what you said makes sense in terms of manufacturer's implementation of 802.11n. i was trying your method 2 to disable 802.11n and it did not seem to work. i added a new file in /etc/modprobe.d with content options iwlwifi 11n_disable=1 but it no more seems to load iwlwifi module and i still have wireless blip problem. /etc/modprobe.d also has iwlwifi.conf with content remove iwlwifi (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) && /sbin/modprobe -r mac80211 and i am not sure why is it trying to remove modules. this file came part of linux mint.
Nov
18
comment system went unresponsive and had to hard reboot
looks like you are suggesting to disable N; will there not be a fix for the problem?
Nov
18
comment system went unresponsive and had to hard reboot
hi i think your guess is right. i have added some more information when blips happen. thanks.
Nov
18
revised system went unresponsive and had to hard reboot
wireless information and logs on blips
Nov
17
asked system went unresponsive and had to hard reboot
Oct
7
awarded  Popular Question
Oct
7
comment hanging ssh processes launched from a script
on executing echo cmd&&cmd2 | ssh -o into one of the vms and when known host entry is not found, ssh is trying to write to the terminal that the host could not be verified. but the ssh is not part of the foreground process group so the terminal signals SIGTTOU. but i don't understand why ssh does not recognize that it does not run in the background; i believe it would have been told so by a signal. also i want to change the ssh behavior where it tries to write to terminal but it can't and then the program hangs. i can only find out on strace. is there a way around to perform echo cmd|ssh
Oct
6
comment hanging ssh processes launched from a script
Since ssh-keygen creates a new temp file, edits and moves back to known_hosts this creates race condition when multiple entries are removed from known_hosts. i have disabled 'StrictHostKeyChecking' altogether and that solves the problem. thanks for your answer.
Oct
6
accepted hanging ssh processes launched from a script
Oct
6
revised hanging ssh processes launched from a script
included the lines which leads to a race condition where known_hosts is backed up when an entry is removed