Hi Andrew! After applying the patch the same lock exists: #001: [ffff81006edc4080] {scsi_host_alloc} .. held by: scsi_wq_4: 4255 [ffff81007edaf770, 110] ... acquired at: scsi_scan_target+0x51/0x87 [scsi_mod] Thanks, Maxim. - : 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