Hello, Alan Stern. Alan Stern wrote: >> The endpoint directory shown in the oops report does not exist if I'm not >> thrashing the box with >> winecfg. On Tejun Heo's suggestion, I put some debug code at the beginning >> of sysfs_release() to >> print a stack-dump and the kobject's path if the attr->owner field contains >> 0x6b6b6b6b or >> 0x5a5a5a5a poison: >> >> XXX debug trap owner=6b6b6b6b, path=/class/usb_endpoint/usbdev1.3_ep84 >> XXX debug stack-dump >> [<c018462a>] sysfs_release+0x70/0xa5 >> [<c0151837>] __fput+0x96/0x13c >> [<c014f358>] filp_close+0x51/0x58 >> [<c0150351>] sys_close+0x70/0xa7 >> [<c0102bde>] sysenter_past_esp+0x5f/0x85 >> [<c0270033>] unix_create1+0xa2/0xee >> ======================= > > This clearly indicates that something has been deallocated too early (or > equivalently, used too late).
What has been filled with the 6b pattern here is struct attribute not some sysfs internal object. Does USB allocate struct attribute dynamically for any of its attributes? -- tejun ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
