While not limited strictly to Alcor, it appears many problems lie with this chipset. My chipset is an Alcor (nGear multi card reader / hub) as is the official bug report at kernel.org:
http://bugzilla.kernel.org/show_bug.cgi?id=ehci_hcd https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746/comments/62 https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746/comments/119 https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746/comments/299 https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746/comments/397
I will suggest to anyone with an Alcor to attempt the above workaround as listed in comment https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/88746/comments/372
To help out the developers it might be prudent to identify the offending chipsets that are misbehaving.
While not limited strictly to Alcor, it appears many problems lie with this chipset. My chipset is an Alcor (nGear multi card reader / hub) as is the official bug report at kernel.org:
http:// bugzilla. kernel. org/show_ bug.cgi? id=ehci_ hcd /bugs.launchpad .net/ubuntu/ +source/ linux-source- 2.6.20/ +bug/88746/ comments/ 62 /bugs.launchpad .net/ubuntu/ +source/ linux-source- 2.6.20/ +bug/88746/ comments/ 119 /bugs.launchpad .net/ubuntu/ +source/ linux-source- 2.6.20/ +bug/88746/ comments/ 299 /bugs.launchpad .net/ubuntu/ +source/ linux-source- 2.6.20/ +bug/88746/ comments/ 397
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I will suggest to anyone with an Alcor to attempt the above workaround as listed in comment https:/ /bugs.launchpad .net/ubuntu/ +source/ linux-source- 2.6.20/ +bug/88746/ comments/ 372
To help out the developers it might be prudent to identify the offending chipsets that are misbehaving.