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Subject: [Bug 190785] New: cpu affinity not work in FreeBSD 10-STABLE
Date: Sun, 08 Jun 2014 08:09:33 +0000
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X-Bugzilla-Who: gondim@bsdinfo.com.br
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190785

            Bug ID: 190785
           Summary: cpu affinity not work in FreeBSD 10-STABLE
           Product: Base System
           Version: 10.0-STABLE
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: gondim@bsdinfo.com.br

Hi,

Recently noticed the following:

# devinfo -rv

            em0 pnpinfo vendor=0x8086 device=0x105e subvendor=0x8086
subdevice=0x135e class=0x020000 at slot=0 function=0
                Interrupt request lines:
                    264
                pcib1 I/O port window:
                    0x4020-0x403f
                pcib1 memory window:
                    0xc1240000-0xc125ffff
                    0xc1260000-0xc127ffff

After discovering the irq 264 in interface em0, I did this:

# cpuset -l 3 -x 264

Even doing this, the em0 continues migrating to other CPU after a short
period of time.

You see it happen with: top -PSH.

Tested on more than one system with FreeBSD 10-STABLE.

FreeBSD xxxx.xxxxx.xxx.xx 10.0-STABLE FreeBSD 10.0-STABLE #9 r267034: Wed
Jun  4 02:22:38 BRT 2014 root@xxxx.xxxxx.xxx.xx:/usr/obj/usr/src/sys/GONDIM
amd64

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