8139too: defunct threads

From: Rod Stewart (stewart@dystopia.lab43.org)
Date: Thu Apr 12 2001 - 12:58:08 EST


Hello,

Using the 8139too driver, 0.9.15c, we have noticed that we get a defunct
thread for each device we have; if the driver is built into the kernel.
If the driver is built as a module, no defunct threads appear.

This has happened with any 2.4 kernel we've used, up to and including
2.4.3.

Below is the output from a custom board (but the problem also shows up
with a standard PCI card with RTL-8139B) with three RealTek RTL8139
chipsets on it.

[root@stewart-nw34 /root]# ps uaxwwww|grep eth
root 14 0.0 0.0 0 0 ? Z 13:39 0:00 [eth0 <defunct>]
root 15 0.0 0.0 0 0 ? Z 13:39 0:00 [eth1 <defunct>]
root 16 0.0 0.0 0 0 ? Z 13:39 0:00 [eth2 <defunct>]
root 240 0.0 0.0 0 0 ? SW 13:39 0:00 [eth0]
root 572 0.0 0.0 0 0 pts/1 SW 13:49 0:00 [eth1]
root 538 0.0 0.4 1216 460 pts/0 S 13:41 0:00 grep eth

8139too Fast Ethernet driver 0.9.15c loaded
PCI: Enabling device 00:05.0 (0000 -> 0003)
PCI: Assigned IRQ 6 for device 00:05.0
PCI: Setting latency timer of device 00:05.0 to 64
eth0: RealTek RTL8139 Fast Ethernet at 0xc7800000, 00:10:57:01:00:19,
        IRQ 6
eth0: Identified 8139 chip type 'RTL-8139C'
PCI: Enabling device 00:09.0 (0000 -> 0003)
PCI: Assigned IRQ 6 for device 00:09.0
PCI: Setting latency timer of device 00:09.0 to 64
eth1: RealTek RTL8139 Fast Ethernet at 0xc7802100, 00:10:57:02:00:19,
        IRQ 6
eth1: Identified 8139 chip type 'RTL-8139C'
PCI: Enabling device 00:0a.0 (0000 -> 0003)
PCI: Assigned IRQ 6 for device 00:0a.0
PCI: Setting latency timer of device 00:0a.0 to 64
eth2: RealTek RTL8139 Fast Ethernet at 0xc7804200, 00:10:57:03:00:19,
        IRQ 6
eth2: Identified 8139 chip type 'RTL-8139C'

I'm not certain if this is supposed to be expected behaviour or not, if it
is we'll tell QA to ignore it.

Thanks,
-Rms

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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:19 EST