[haiku-bugs] Re: [Haiku] #5076: cat /dev/urandom hangs the terminal after a while
- From: "jackburton" <trac@xxxxxxxxxxxx>
- Date: Wed, 09 Jun 2010 15:28:54 -0000
#5076: cat /dev/urandom hangs the terminal after a while
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Reporter: jackburton | Owner: bonefish
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/TTY | Version: R1/Development
Keywords: gcc4 hybrid | Platform: All
Blockedby: | Patch: 0
Blocking: |
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Comment(by jackburton):
Replying to [comment:10 bonefish]:
> Replying to [comment:8 jackburton]:
> > Looking at the linux tty layer I found that they expose a reduced
available buffer to the tty drivers, so that there is always enough room
to handle cases like this.
>
> Can you explain how that is supposed to work?
Some comments ago you wrote: "This would also solve the second issue, that
in echo mode writes from the Terminal are echoed back to the TTY master,
whose buffer could already be full. ".
If the TTY master buffer reserved some space to handle echo and control
characters (by exposing a smaller buffer to drivers), its buffer will
never fill up completely, so it won't deadlock.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5076#comment:11>
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