On 10.12.2015 18:18, Sébastien Deligny wrote:
Hello I've report a bug on bug tracker but I've been advise to post it directly to th mailing list. Here is my problem : Connected on USB3 SSD as root partition, sometimes the system lags a lot and I'm not able to stop the system properly as the FS become readonly. Tested with 4.2 kernel. With testing version 4.3, the lags occur again but after few minutes it come back to a stable situation. Could you please CC'ed me in the answers of this post? Here is the extract of journalctl : Connected on USB3 SSD as root partition, sometimes the system lags a lot and I'm not able to stop the system properly as the FS become readonly. Tested with 4.2 kernel. With testing version 4.3, the lags occur again but after few minutes it come back to a stable situation. Here is the copy of journalctl : déc. 08 23:10:52 Vulpus kernel: xhci_hcd 0000:00:14.0: ERROR Unknown event condition 10, HC probably busted déc. 08 23:10:52 Vulpus kernel: xhci_hcd 0000:00:14.0: ERROR Transfer event for disabled endpoint or incorrect stream
Event condition 10 is a "Invalid Stream Type Error" related to uas and xhci streams usage, xhci specs 4.12.2.1 list several occasions when this can happen, partly depending on if a Secondary stream array is in use. I've managed to avoid streams until now. We should probably print out the endpoint/stream context on this error. Are you seeing this issue if the USB3 SSD is not connected as root partition? Can you add xhci debugging and try to reproduce this issue: echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control -Mathias -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
