{Spam?} Re: kern/51982: [sio] sio1: interrupt-level buffer overflows

Volker volker at vwsoft.com
Mon Mar 27 00:30:24 UTC 2006


The following reply was made to PR kern/51982; it has been noted by GNATS.

From: Volker <volker at vwsoft.com>
To: bug-followup at FreeBSD.org
Cc:  
Subject: {Spam?} Re: kern/51982: [sio] sio1: interrupt-level buffer overflows
Date: Mon, 27 Mar 2006 02:21:08 +0200

 I'm also able to confirm this being a problem
 
 My (only) fix was to change cp4ticks in sio.c to the last (third)
 suggested version:
 
 cp4ticks = speed / 10 / 100 * 40;
 
 as I'm using HZ=1000 in my kernelconfig, so it didn't work with
 "speed / 10 / hz * 40".
 
 I'm wondering if someone will commit this as a patch to RELENG_6
 (and probably RELENG_5)?
 
 This is an _essential_ fix for using 3G/UMTS cards under FreeBSD as
 they're running with 384kbit/s which is fairly too fast without this
 fix (Novatel Merlin U530 + U630 are running as serial-over-pcmcia).
 
 Volker
 


More information about the freebsd-bugs mailing list