https://bugzilla.kernel.org/show_bug.cgi?id=206779 Bug ID: 206779 Summary: usb subsystems hang Product: Drivers Version: 2.5 Kernel Version: 5.5.7 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: ionut_n2001@xxxxxxxxx Regression: No Hi, I observed issue with this version with one usb device. My setup is: Ubuntu 19.10 clean install Kernel 5.5.7 vanilla, 5.5.7-vanilla My issue is: [ 726.043665] INFO: task fastboot:1531 blocked for more than 120 seconds. [ 726.043716] Not tainted 5.5.7-vanilla #1 [ 726.043734] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.043753] fastboot D 0 1531 1413 0x00000004 [ 726.043755] Call Trace: [ 726.043778] __schedule+0x28c/0x6e0 [ 726.043779] schedule+0x44/0xb0 [ 726.043780] schedule_timeout+0x1d3/0x2f0 [ 726.043783] ? ttwu_do_activate+0x5a/0x70 [ 726.043784] wait_for_completion_timeout+0xb3/0x140 [ 726.043785] ? wake_up_q+0xb0/0xb0 [ 726.043787] usb_start_wait_urb+0x8c/0x180 [ 726.043788] usb_bulk_msg+0xb8/0x160 [ 726.043790] proc_bulk+0x158/0x3a0 [ 726.043791] usbdev_ioctl+0xc08/0x1480 [ 726.043794] do_vfs_ioctl+0xa5/0x680 [ 726.043796] ? finish_task_switch+0x70/0x260 [ 726.043798] ? tomoyo_file_ioctl+0x19/0x20 [ 726.043799] ksys_ioctl+0x75/0x80 [ 726.043801] __x64_sys_ioctl+0x1a/0x20 [ 726.043803] do_syscall_64+0x57/0x1c0 [ 726.043804] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 726.043810] RIP: 0033:0x7f1da431867b [ 726.043815] Code: Bad RIP value. [ 726.043816] RSP: 002b:00007ffdb4c22af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 726.043817] RAX: ffffffffffffffda RBX: 000055b82cb5c2a0 RCX: 00007f1da431867b [ 726.043818] RDX: 00007ffdb4c22b00 RSI: 00000000c0185502 RDI: 0000000000000004 [ 726.043818] RBP: 0000000000000040 R08: 00000000000001ec R09: 00007ffdb4c22b40 [ 726.043819] R10: 00007ffdb4c22b00 R11: 0000000000000246 R12: 0000000000000040 [ 726.043819] R13: 00000006fc23abff R14: 0000000000000000 R15: 00007ffdb4c22c70 [ 774.124057] usb 1-2: USB disconnect, device number 4 I had to restart the car so I could continue the process. My task is: writing a phone with adb and fastboot. -- You are receiving this mail because: You are watching the assignee of the bug.
