On 15:38 Wed 19 May , Tejun Heo wrote: > There are ATAPI devices which raise AN when hit by commands issued by > open(). This leads to infinite loop of AN -> MEDIA_CHANGE uevent -> > udev open() to check media -> AN. > > Both ACS and SerialATA standards don't define in which case ATAPI > devices are supposed to raise or not raise AN. They both list media > insertion event as a possible use case for ATAPI ANs but there is no > clear description of what constitutes such events. As such, it seems > a bit too naive to export ANs directly to userland as MEDIA_CHANGE > events without further verification (which should behave similarly to > windows as it apparently is the only thing that some hardware vendors > are testing against). > > This patch adds libata.atapi_an module parameter and disables ATAPI AN > by default for now. Works here, drive now spins down properly. Tested-By: Nick Bowler <nbowler@xxxxxxxxxx> -- Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/) -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
