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2d
comment Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work
Yeah, I could do that but dump_stack() eventually just calls printk() too, right. But isn't e1000 already available in initrd? As I said it does not seem to be called after /dev/kmsg is created since otherwise I'd see it. I'll give dump_stack() a try.
2d
comment Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work
Hmm, at least e1000_open() and thus e1000_irq_enable() gets called before /dev/kmsg is created, since the printk() I put into e1000_open() is not available in dmesg.
2d
comment Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work
Thanks for the hint, should read properly.. m( Well, I did that but it didn't work. In detail I loaded the module insmod short and mknoded /dev/short0, after that I wrote binary junk to /dev/short0 by doing cat /sbin/* > /dev/short0 while I had pin 9 and 10 connected, but no interrupts occured.
2d
comment Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work
Ok then this seems different with char devices. In the case of e1000 the module itself seems to enable irqs while booting.
2d
asked Triggering hardware interrupts by connecting parallel port pins 9 and 10 does not work
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asked What is the difference between Local timer interrupts and the timer?
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comment How does sudo decide whether a command is only executable by sudoers with ALL rights?
Perfect explanation, thank you very much!
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comment How does sudo decide whether a command is only executable by sudoers with ALL rights?
Ok I see, but what system calls are those and what part of the kernel controls this? And why do they downvote me, it's a fair question I think.