On 8/23/05, Jim Ramsay <jim.ramsay@xxxxxxxxx> wrote: > Then I must have found an undocumented feature! I've applied this set > of patches to a 2.6.11 kernel (with few problems) and ran into a bunch > of "scheduling while atomic" errors when hotplugging a drive, culprit > being probably scsi_sysfs.c where scsi_remove_device locks a mutex, or > perhaps when it then calls class_device_unregister, which does a > 'down_write'. After further debugging, it appears that the problem is the debounce timer in libata-core.c. Timers appear to operate in an atomic context, so timers should not be allowed to call scsi_remove_device, which eventually schedules. Any suggestions on the best way to fix this? -- Jim Ramsay "Me fail English? That's unpossible!" - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
