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I pulled the power cord on my laptop and it is not working, sadly. ;-)

thecarpy
– thecarpy

2014-02-19 15:24:56 +00:00
Commented Feb 19, 2014 at 15:24
2

Isn't it EINTR instead of EAGAIN? Also read() returns -1 and errno is set to the error.

lethalman
– lethalman

2015-03-25 09:36:43 +00:00
Commented Mar 25, 2015 at 9:36
2

@Dexter: You are indeed missing the point. Read the LWN article: lwn.net/Articles/288056. Those problems are caused by lazy device driver programmers, and they need to be fixed in the device driver code.

ddaa
– ddaa

2015-11-25 16:08:10 +00:00
Commented Nov 25, 2015 at 16:08
4

@ddaa "Unix tradition (and thus almost all applications) believe file store writes to be non signal interruptible. It would not be safe or practical to change that guarantee." -> This is exactly the most wrong part of all this IMO. Just interrupt the read/write request of the driver, and when the actual device (hard disk / network card / etc) delivers the data, ignore it. An OS kernel should be made in a way that NO developer can screw it up.

Dexter
– Dexter

2017-01-25 10:24:58 +00:00
Commented Jan 25, 2017 at 10:24
2

@ddaa I do know Linux is not a microkernel, though I am not sure what part of my comment relates to it... And then, does your comment mean that a microkernel OS does not have a problem with those "uninterruptible" processes? Because if it does not, maybe it's time for me to become a microkernel fan... :D

Dexter
– Dexter

2017-03-19 08:22:30 +00:00
Commented Mar 19, 2017 at 8:22

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