Hello All, I am having a cortexa9 based microcontroler having PCIE host controller from synposis. I am using linux2.6.32. I have developed support for this host controller in my linux stack. Now, I connect a xhci based USB3.0 card (ICY BOX IB-AC604). It is recognized by the stack well. When I connect a HS mass storage device , it is also well recognized. Now if I do any transaction and do the sync operation, it fails: # mount /dev/sda1 /mnt/ # mkdir /mnt/test # sync Regards pratyush PS: please find debug messages ----------------Debug print : xhci recognition ------------------------- xhci_hcd 0000:00:00.0: xHCI Host Controller xhci_hcd 0000:00:00.0: new USB bus registered, assigned bus number 5 xhci_hcd 0000:00:00.0: irq 376, io mem 0xc0000000 ------------------------------------------------------------- --------------------Debug Print: USB massstorage recognition-------------- usb 5-3: new high speed USB device using xhci_hcd and address 0 xhci_hcd 0000:00:00.0: WARN: short transfer on control ep xhci_hcd 0000:00:00.0: WARN: short transfer on control ep xhci_hcd 0000:00:00.0: WARN: short transfer on control ep xhci_hcd 0000:00:00.0: WARN: short transfer on control ep usb 5-3: configuration #1 chosen from 1 choice scsi0 : SCSI emulation for USB Mass Storage devices scsi 0:0:0:0: Direct-Access JetFlash Transcend 16GB 1100 PQ: 0 ANSI: 0 CCS sd 0:0:0:0: [sda] 31326208 512-byte logical blocks: (16.0 GB/14.9 GiB) sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Assuming drive cache: write through sd 0:0:0:0: [sda] Assuming drive cache: write through sda: sda1 sd 0:0:0:0: [sda] Assuming drive cache: write through sd 0:0:0:0: [sda] Attached SCSI removable disk ---------------------------------------------------- --------------------Debug Print: sync fail -------------- # mount /dev/sda1 /mnt/ # mkdir /mnt/test # sync INFO: task scsi_eh_0:507 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. scsi_eh_0 D c02c07c8 0 507 2 0x00000000 Backtrace: [<c02c0528>] (schedule+0x0/0x2dc) from [<c02c0a14>] (schedule_timeout+0x20/0x1b8) [<c02c09f4>] (schedule_timeout+0x0/0x1b8) from [<c02c03fc>] (wait_for_common+0xe0/0x178) r7:7fffffff r6:c3a24bac r5:c38bad80 r4:c3a24bb0 [<c02c031c>] (wait_for_common+0x0/0x178) from [<c02c0524>] (wait_for_completion+0x18/0x1c) [<c02c050c>] (wait_for_completion+0x0/0x1c) from [<c020bdbc>] (command_abort+0x94/0x9c) [<c020bd28>] (command_abort+0x0/0x9c) from [<c019f9bc>] (__scsi_try_to_abort_cmd+0x2c/0x30) r7:c3a36000 r6:c3a37f84 r5:c3a24800 r4:c388fd20 [<c019f990>] (__scsi_try_to_abort_cmd+0x0/0x30) from [<c01a13b0>] (scsi_error_handler+0x12c/0x358) [<c01a1284>] (scsi_error_handler+0x0/0x358) from [<c0051218>] (kthread+0x88/0x90) r7:c01a1284 r6:c3a24800 r5:c3889bb8 r4:c3a37fbc [<c0051190>] (kthread+0x0/0x90) from [<c003fbf8>] (do_exit+0x0/0x5c4) r7:00000000 r6:00000000 r5:00000000 r4:00000000 INFO: task usb-storage:508 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. usb-storage D c02c07c8 0 508 2 0x00000000 Backtrace: [<c02c0528>] (schedule+0x0/0x2dc) from [<c02c0a14>] (schedule_timeout+0x20/0x1b8) [<c02c09f4>] (schedule_timeout+0x0/0x1b8) from [<c02c03fc>] (wait_for_common+0xe0/0x178) r7:7fffffff r6:c3a24b64 r5:c38b9d40 r4:c3a24b68 [<c02c031c>] (wait_for_common+0x0/0x178) from [<c02c0524>] (wait_for_completion+0x18/0x1c) [<c02c050c>] (wait_for_completion+0x0/0x1c) from [<c01f1d00>] (usb_sg_wait+0x148/0x154) [<c01f1bb8>] (usb_sg_wait+0x0/0x154) from [<c020c808>] (usb_stor_bulk_transfer_sglist+0xbc/0x110) [<c020c74c>] (usb_stor_bulk_transfer_sglist+0x0/0x110) from [<c020c88c>] (usb_stor_bulk_srb+0x30/0x48) [<c020c85c>] (usb_stor_bulk_srb+0x0/0x48) from [<c020cdbc>] (usb_stor_Bulk_transport+0x110/0x2ac) r4:ffc1300f [<c020ccac>] (usb_stor_Bulk_transport+0x0/0x2ac) from [<c020cf80>] (usb_stor_invoke_transport+0x28/0x314) [<c020cf58>] (usb_stor_invoke_transport+0x0/0x314) from [<c020bf8c>] (usb_stor_transparent_scsi_command+0x10/0x14) r8:00000000 r7:c020df44 r6:c3a24800 r5:c3a24abc r4:c3a31fbc [<c020bf7c>] (usb_stor_transparent_scsi_command+0x0/0x14) from [<c020e098>] (usb_stor_control_thread+0x154/0x21c) [<c020df44>] (usb_stor_control_thread+0x0/0x21c) from [<c0051218>] (kthread+0x88/0x90) r6:c3a24abc r5:c3889c10 r4:c3a31fbc [<c0051190>] (kthread+0x0/0x90) from [<c003fbf8>] (do_exit+0x0/0x5c4) r7:00000000 r6:00000000 r5:00000000 r4:00000000 INFO: task sync:534 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. sync D c02c07c8 0 534 504 0x00000000 Backtrace: [<c02c0528>] (schedule+0x0/0x2dc) from [<c02c0948>] (io_schedule+0x44/0x70) [<c02c0904>] (io_schedule+0x0/0x70) from [<c0069bcc>] (sync_page+0x50/0x5c) r5:00000000 r4:c3a2be64 [<c0069b7c>] (sync_page+0x0/0x5c) from [<c02c0dcc>] (__wait_on_bit+0x64/0xac) [<c02c0d68>] (__wait_on_bit+0x0/0xac) from [<c0069df0>] (wait_on_page_bit+0x9c/0xac) [<c0069d54>] (wait_on_page_bit+0x0/0xac) from [<c006a294>] (wait_on_page_writeback_range+0x6c/0x140) r7:c3403554 r6:c3a2beb0 r5:00000001 r4:c040ef60 [<c006a228>] (wait_on_page_writeback_range+0x0/0x140) from [<c006a3a8>] (filemap_fdatawait+0x40/0x44) [<c006a368>] (filemap_fdatawait+0x0/0x44) from [<c006aed8>] (filemap_write_and_wait+0x38/0x48) r5:c3403554 r4:00000000 [<c006aea0>] (filemap_write_and_wait+0x0/0x48) from [<c00bc340>] (__sync_blockdev+0x34/0x38) r5:00000001 r4:c39fb800 [<c00bc30c>] (__sync_blockdev+0x0/0x38) from [<c00b3d68>] (__sync_filesystem+0x60/0x64) [<c00b3d08>] (__sync_filesystem+0x0/0x64) from [<c00b3e28>] (sync_filesystems+0xbc/0x114) r5:c39fb840 r4:c39fb800 [<c00b3d6c>] (sync_filesystems+0x0/0x114) from [<c00b3edc>] (sys_sync+0x24/0x44) r7:00000024 r6:0000bb88 r5:00000124 r4:0003bc20 [<c00b3eb8>] (sys_sync+0x0/0x44) from [<c0028e40>] (ret_fast_syscall+0x0/0x2c) ------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
