topic Re: TWR-LS1021A: Serial gadget kernel crash is seen randomly in Layerscape https://community.nxp.com/t5/Layerscape/TWR-LS1021A-Serial-gadget-kernel-crash-is-seen-randomly/m-p/355741#M50 <HTML><HEAD></HEAD><BODY><P>hi，&nbsp;<A _jive_internal="true" data-content-finding="Community" data-userid="228093" data-username="cpark" href="https://community.nxp.com/people/cpark" style="color: #3d9ce7; background-color: #ffffff; border: 0px; font-weight: 600; text-decoration: underline; font-size: 11.9994px;">Chan Park</A><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>&nbsp;</SPAN></SPAN></P><P><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>I also encountered the same problem as you. Is your problem solved?</SPAN></SPAN></P></BODY></HTML> Tue, 13 Aug 2019 09:00:05 GMT 864535720 2019-08-13T09:00:05Z TWR-LS1021A: Serial gadget kernel crash is seen randomly https://community.nxp.com/t5/Layerscape/TWR-LS1021A-Serial-gadget-kernel-crash-is-seen-randomly/m-p/355740#M49 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Test Setup:</P><P><SPAN style="font-family: 'courier new', courier;"><BR /></SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; Host (Linux)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; -----------------------------------------</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Host-Side&nbsp;&nbsp; Generic USB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; USB Host&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Operating | Serial&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Controller |&nbsp;&nbsp; USB</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | System&nbsp;&nbsp;&nbsp; | Driver&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Driver&nbsp;&nbsp;&nbsp;&nbsp; |--------</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | (Linux)&nbsp;&nbsp; | (usbserial.ko) | and&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; USB Stack&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; -----------------------------------------&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; Gadget (TWR-LS1021A, USB2 in ULPI mode)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; --------------------------------------&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Gadget&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; USB Periph. |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Device-Side |&nbsp; Gadget&nbsp; | Controller&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Linux&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp; Serial&nbsp; | Driver&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |-----------</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | Operating&nbsp;&nbsp; |&nbsp; Driver&nbsp; | and&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; | System&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |(g_serial.| USB Stack&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ko)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">&nbsp;&nbsp; --------------------------------------</SPAN></P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>I saw kernel crash once.&nbsp; It is very hard to reproduce.&nbsp; The system freezes after the crash.&nbsp; The full log file is attached.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80304624&gt;] (_raw_spin_lock_irqsave+0xa/0x34) from [&lt;7f81bbf9&gt;] (gs_put_char+0x16/0x34 [u_serial])</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;7f81bbf9&gt;] (gs_put_char+0x16/0x34 [u_serial]) from [&lt;80185e5f&gt;] (tty_put_char+0x11/0x22)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80185e5f&gt;] (tty_put_char+0x11/0x22) from [&lt;80188a03&gt;] (do_output_char+0x109/0x12a)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80188a03&gt;] (do_output_char+0x109/0x12a) from [&lt;80188b19&gt;] (__process_echoes+0xf5/0x14e)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80188b19&gt;] (__process_echoes+0xf5/0x14e) from [&lt;801891ef&gt;] (commit_echoes+0x37/0x52)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;801891ef&gt;] (commit_echoes+0x37/0x52) from [&lt;8018a0df&gt;] (__receive_buf+0x2a3/0x504)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;8018a0df&gt;] (__receive_buf+0x2a3/0x504) from [&lt;8018a383&gt;] (n_tty_receive_buf2+0x43/0x66)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;8018a383&gt;] (n_tty_receive_buf2+0x43/0x66) from [&lt;8018c215&gt;] (flush_to_ldisc+0x71/0x9a)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;8018c215&gt;] (flush_to_ldisc+0x71/0x9a) from [&lt;800267b9&gt;] (process_one_work+0x161/0x21c)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;800267b9&gt;] (process_one_work+0x161/0x21c) from [&lt;80026be9&gt;] (worker_thread+0x179/0x25c)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80026be9&gt;] (worker_thread+0x179/0x25c) from [&lt;80029fad&gt;] (kthread+0x5d/0x6c)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">[&lt;80029fad&gt;] (kthread+0x5d/0x6c) from [&lt;8000c1f9&gt;] (ret_from_fork+0x11/0x38)</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">Code: 4603 f3ef 8000 b672 (e853) 1f00</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">---[ end trace 345734d18d7b1195 ]---</SPAN></P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Hardware:</P><P>TWR-LS1021A REV C2</P><P>TWR-SER2</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Software:</P><P>SDK 1.7</P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337167">LS1021A-g_serial-kernel-crash.txt.zip</A></STRONG></P></BODY></HTML> Fri, 06 Feb 2015 21:41:41 GMT https://community.nxp.com/t5/Layerscape/TWR-LS1021A-Serial-gadget-kernel-crash-is-seen-randomly/m-p/355740#M49 cpark 2015-02-06T21:41:41Z Re: TWR-LS1021A: Serial gadget kernel crash is seen randomly https://community.nxp.com/t5/Layerscape/TWR-LS1021A-Serial-gadget-kernel-crash-is-seen-randomly/m-p/355741#M50 <HTML><HEAD></HEAD><BODY><P>hi，&nbsp;<A _jive_internal="true" data-content-finding="Community" data-userid="228093" data-username="cpark" href="https://community.nxp.com/people/cpark" style="color: #3d9ce7; background-color: #ffffff; border: 0px; font-weight: 600; text-decoration: underline; font-size: 11.9994px;">Chan Park</A><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>&nbsp;</SPAN></SPAN></P><P><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>I also encountered the same problem as you. Is your problem solved?</SPAN></SPAN></P></BODY></HTML> Tue, 13 Aug 2019 09:00:05 GMT https://community.nxp.com/t5/Layerscape/TWR-LS1021A-Serial-gadget-kernel-crash-is-seen-randomly/m-p/355741#M50 864535720 2019-08-13T09:00:05Z