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Re: [Qemu-discuss] How to get console output after spawning new process
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-discuss] How to get console output after spawning new process |
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Date: |
Fri, 24 Jul 2015 17:04:19 +0100 |
On 24 July 2015 at 16:54, Maciej Bielski <address@hidden> wrote:
> Ok, I have found a solution. The process spawned was using SIGUSR1 to
> signal something to the parent process (device internals). It seems that
> QEMU uses SIGUSR1 internally because when I have switched to SIGUSR2 it
> works as expected.
Yes, we use SIGUSR1 typically as our "IPI" signal for when one thread
needs to tell another to wake up and do some work.
-- PMM