tech-kern archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: Critical section

To: Masao Uebayashi <uebayasi%gmail.com@localhost>
Subject: Re: Critical section
From: Matt Thomas <matt%3am-software.com@localhost>
Date: Wed, 26 Nov 2014 08:38:54 -0800

> On Nov 26, 2014, at 8:04 AM, Masao Uebayashi <uebayasi%gmail.com@localhost> wrote:
> 
> Critical section must stop soft interrupt which may block & sleep
> (using the preempted lwp).  Thus critical sections must be at least
> IPL_SOFTSERIAL.

That is not true.  If the softint thread sleeps, control is returned back
to the preempted lwp.

Follow-Ups:
- Re: Critical section
  - From: Masao Uebayashi

References:
- Critical section
  - From: Masao Uebayashi
- Re: Critical section
  - From: Masao Uebayashi

Prev by Date: Re: Critical section
Next by Date: Re: Critical section
Previous by Thread: Re: Critical section
Next by Thread: Re: Critical section
Indexes:

Home | Main Index | Thread Index | Old Index