<br><font size=2><tt>Hi, Michael,</tt></font>
<br>
<br><font size=2><tt>Does the patch you are working on address below problem?
rmmod hcad_mod hung in ipoib. This is the task stacks I got on linux-2.6.14
+ SVN 4044.</tt></font>
<br>
<br><font size=2><tt>rmmod         D 000000000ff7d030
11248 15681  14007              
14061 (NOTLB)<br>
Call Trace:<br>
[c00000006dd9af10] [c00000006dd9b0f0] 0xc00000006dd9b0f0 (unreliable)<br>
[c00000006dd9b0e0] [c00000000000e468] .__switch_to+0x104/0x180<br>
[c00000006dd9b170] [c000000000394528] .schedule+0x774/0xf34<br>
[c00000006dd9b2b0] [c000000000069238] .flush_cpu_workqueue+0xdc/0x2c0<br>
[c00000006dd9b3c0] [d00000000041f77c] .ipoib_mcast_stop_thread+0x1cc/0x274<br>
[ib_ipoib]<br>
[c00000006dd9b480] [d00000000041c880] .ipoib_ib_dev_down+0x124/0x194 [ib_ipoib]<br>
[c00000006dd9b520] [d00000000041aed4] .ipoib_stop+0x98/0x188 [ib_ipoib]<br>
[c00000006dd9b5b0] [c0000000002e79e4] .dev_close+0x110/0x118<br>
[c00000006dd9b630] [c0000000002e7afc] .unregister_netdevice+0x110/0x320<br>
[c00000006dd9b6c0] [c0000000002e7d30] .unregister_netdev+0x24/0x40<br>
[c00000006dd9b750] [d00000000041b104] .ipoib_remove_one+0x64/0xc0 [ib_ipoib]<br>
[c00000006dd9b7e0] [d00000000024e8fc] .ib_unregister_device+0xb4/0x1b4<br>
[ib_core][c00000006dd9b880] [d00000000054a1fc] .ehca_remove+0x9c/0x714
[hcad_mod]<br>
<br>
ipoib         D 0000000000000000 13552 13326  
  19         13712  3575 (L-TLB)<br>
Call Trace:<br>
[c0000000f679f760] [c0000000f679f870] 0xc0000000f679f870 (unreliable)<br>
[c0000000f679f930] [c00000000000e468] .__switch_to+0x104/0x180<br>
[c0000000f679f9c0] [c000000000394528] .schedule+0x774/0xf34<br>
[c0000000f679fb00] [c000000000395310] .wait_for_completion+0xc8/0x140<br>
[c0000000f679fbf0] [d00000000041f7c8] .ipoib_mcast_stop_thread+0x218/0x274<br>
[ib_ipoib]<br>
[c0000000f679fcb0] [d00000000041f9c0] .ipoib_mcast_restart_task+0x90/0x410<br>
[ib_ipoib]<br>
[c0000000f679fdb0] [c000000000068a8c] .worker_thread+0x244/0x320<br>
[c0000000f679fed0] [c00000000006fbf8] .kthread+0x178/0x1c8<br>
[c0000000f679ff90] [c0000000000100b8] .kernel_thread+0x4c/0x68</tt></font>
<br><font size=2 face="sans-serif"><br>
Thanks<br>
Shirley Ma<br>
IBM Linux Technology Center<br>
15300 SW Koll Parkway<br>
Beaverton, OR 97006-6063<br>
Phone(Fax): (503) 578-7638<br>
<br>
</font>