Hi, Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> writes: >>>> Any ideas on how to debug this would be apreciated. >>> >>> You can start by enabling verbose debugging in f_mass_storage.c. >>> Uncomment the two lines that say: >>> >>> /* #define VERBOSE_DEBUG */ >>> /* #define DUMP_MSGS */ >>> >>> You'll probably also have to enable dynamic debugging for the >>> g_mass_storage module. >> >> right, I'll do that tomorrow. I'll probably need some rather larger >> kernel logbuf too. Hopefully some 8MiB is enough. > > Here are the last few transfers. It's as if we don't get as far as > check_command() in this particular case: [...] > another READ(10), but nothing else. I'll continue debugging this one. Seems like the kthread doesn't execute. I've added a few __func__, __LINE__ prints to fsg_main_thread(). Here's what we have now: > [ 201.134964] g_mass_storage gadget: bulk-out, length 31: > [ 201.134966] 00000000: 55 53 42 43 e5 9c 00 00 00 00 02 00 80 00 0a 28 > [ 201.134967] 00000010: 00 00 09 45 00 00 01 00 00 00 00 00 00 00 00 > [ 201.134968] g_mass_storage gadget: bulk_out_complete --> 0, 31/31 > [ 201.134980] g_mass_storage gadget: fsg_main_thread 2543 > [ 201.134981] g_mass_storage gadget: fsg_main_thread 2546 > [ 201.134983] g_mass_storage gadget: fsg_main_thread 2549 > [ 201.134984] g_mass_storage gadget: do_scsi_command 1836 > [ 201.134985] SCSI CDB: 28 00 00 09 45 00 00 01 00 00 > [ 201.134989] g_mass_storage gadget: do_scsi_command 1838 > [ 201.134994] g_mass_storage gadget: do_scsi_command 1848 > [ 201.134997] g_mass_storage gadget: do_scsi_command 1851 > [ 201.135001] g_mass_storage gadget: SCSI command: READ(10); Dc=10, Di=131072; Hc=10, Hi=131072 > [ 201.135007] lun0: file read 16384 @ 311033856 -> 16384 > [ 201.135033] lun0: file read 16384 @ 311050240 -> 16384 > [ 201.135050] lun0: file read 16384 @ 311066624 -> 16384 > [ 201.135063] lun0: file read 16384 @ 311083008 -> 16384 > [ 201.135075] lun0: file read 16384 @ 311099392 -> 16384 > [ 201.135087] lun0: file read 16384 @ 311115776 -> 16384 > [ 201.135105] lun0: file read 16384 @ 311132160 -> 16384 > [ 201.135120] lun0: file read 16384 @ 311148544 -> 16384 > [ 201.135130] g_mass_storage gadget: fsg_main_thread 2552 > [ 201.135131] g_mass_storage gadget: fsg_main_thread 2555 > [ 201.135131] g_mass_storage gadget: fsg_main_thread 2558 > [ 201.135132] g_mass_storage gadget: fsg_main_thread 2561 > [ 201.135133] g_mass_storage gadget: bulk-in, length 13: > [ 201.135134] 00000000: 55 53 42 53 e5 9c 00 00 00 00 00 00 00 > [ 201.135143] g_mass_storage gadget: fsg_main_thread 2564 > [ 201.135144] g_mass_storage gadget: fsg_main_thread 2567 > [ 201.135145] g_mass_storage gadget: fsg_main_thread 2570 > [ 201.135146] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135147] g_mass_storage gadget: fsg_main_thread 2572 > [ 201.135148] g_mass_storage gadget: fsg_main_thread 2525 > [ 201.135149] g_mass_storage gadget: fsg_main_thread 2532 > [ 201.135149] g_mass_storage gadget: fsg_main_thread 2538 > [ 201.135153] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135230] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135238] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135322] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135329] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135411] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135419] g_mass_storage gadget: bulk_in_complete --> 0, 16384/16384 > [ 201.135490] g_mass_storage gadget: bulk_in_complete --> 0, 13/13 > [ 201.135496] g_mass_storage gadget: bulk-out, length 31: > [ 201.135497] 00000000: 55 53 42 43 e6 9c 00 00 00 00 02 00 80 00 0a 28 > [ 201.135499] 00000010: 00 00 09 46 00 00 01 00 00 00 00 00 00 00 00 > [ 201.135500] g_mass_storage gadget: bulk_out_complete --> 0, 31/31 -- balbi
Attachment:
signature.asc
Description: PGP signature
