On 2020-10-21 19:50:59 (+0200), David Runge wrote: > P.S.: I was trying the 5.6.x series of realtime kernels on this machine > as well, but although the hardware gets initialized properly (at least > without crashes) my system completely freezes as soon as I start jackd > on the firewire interface (this does not happen with a non-rt kernel). Thanks! 5.9.1-rt19 fixes the crash for me. Unfortunately I now have the ca. 5.6.x-rt* behavior back. The Firewire card initializes properly, but as soon as I start jackd using the device and initialize playback, firewire_core blocks forever and a reboot is required: Oct 26 01:13:35 hmbx kernel: firewire_core 0000:05:00.0: created device fw1: GUID 000a3500ada83262, S800 Oct 26 01:14:47 hmbx kernel: logitech-hidpp-device 0003:046D:101A.0006: HID++ 1.0 device connected. Oct 26 01:20:11 hmbx kernel: INFO: task jackd:6873 blocked for more than 122 seconds. Oct 26 01:20:11 hmbx kernel: Not tainted 5.9.1-rt19-1-rt #1 Oct 26 01:20:11 hmbx kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 26 01:20:11 hmbx kernel: task:jackd state:D stack: 0 pid: 6873 ppid: 1664 flags:0x80004086 Oct 26 01:20:11 hmbx kernel: Call Trace: Oct 26 01:20:11 hmbx kernel: __schedule+0x2c0/0x8f0 Oct 26 01:20:11 hmbx kernel: schedule+0x60/0x100 Oct 26 01:20:11 hmbx kernel: fw_device_op_release+0x230/0x290 [firewire_core] Oct 26 01:20:11 hmbx kernel: ? wait_woken+0x80/0x80 Oct 26 01:20:11 hmbx kernel: __fput+0x8e/0x240 Oct 26 01:20:11 hmbx kernel: task_work_run+0x5c/0x90 Oct 26 01:20:11 hmbx kernel: do_exit+0x383/0xaf0 Oct 26 01:20:11 hmbx kernel: ? finish_task_switch.isra.0+0x91/0x4c0 Oct 26 01:20:11 hmbx kernel: do_group_exit+0x39/0xb0 Oct 26 01:20:11 hmbx kernel: get_signal+0x14f/0x990 Oct 26 01:20:11 hmbx kernel: ? preempt_count_add+0x68/0xa0 Oct 26 01:20:11 hmbx kernel: ? _raw_spin_lock_irqsave+0x26/0x50 Oct 26 01:20:11 hmbx kernel: arch_do_signal+0x3d/0x750 Oct 26 01:20:11 hmbx kernel: ? do_epoll_wait+0xda/0x670 Oct 26 01:20:11 hmbx kernel: exit_to_user_mode_prepare+0x12d/0x1a0 Oct 26 01:20:11 hmbx kernel: syscall_exit_to_user_mode+0x2c/0x1b0 Oct 26 01:20:11 hmbx kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Oct 26 01:20:11 hmbx kernel: RIP: 0033:0x7f42186895de Oct 26 01:20:11 hmbx kernel: Code: Bad RIP value. Oct 26 01:20:11 hmbx kernel: RSP: 002b:00007fff3dcdea40 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 Oct 26 01:20:11 hmbx kernel: RAX: fffffffffffffffc RBX: 00005596b98d6310 RCX: 00007f42186895de Oct 26 01:20:11 hmbx kernel: RDX: 0000000000000020 RSI: 00007fff3dcdea70 RDI: 000000000000000d Oct 26 01:20:11 hmbx kernel: RBP: 00005596b98d6310 R08: 0000000000000002 R09: 00007fff3dcded80 Oct 26 01:20:11 hmbx kernel: R10: 00000000ffffffff R11: 0000000000000246 R12: 00005596b98f5040 Oct 26 01:20:11 hmbx kernel: R13: 00007fff3dcdea70 R14: 00000000801c0000 R15: 0000000000000001 Oct 26 01:22:13 hmbx kernel: INFO: task jackd:6873 blocked for more than 245 seconds. Oct 26 01:22:13 hmbx kernel: Not tainted 5.9.1-rt19-1-rt #1 Oct 26 01:22:13 hmbx kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 26 01:22:13 hmbx kernel: task:jackd state:D stack: 0 pid: 6873 ppid: 1664 flags:0x80004086 Oct 26 01:22:13 hmbx kernel: Call Trace: Oct 26 01:22:13 hmbx kernel: __schedule+0x2c0/0x8f0 Oct 26 01:22:13 hmbx kernel: schedule+0x60/0x100 Oct 26 01:22:13 hmbx kernel: fw_device_op_release+0x230/0x290 [firewire_core] Oct 26 01:22:13 hmbx kernel: ? wait_woken+0x80/0x80 Oct 26 01:22:13 hmbx kernel: __fput+0x8e/0x240 Oct 26 01:22:13 hmbx kernel: task_work_run+0x5c/0x90 Oct 26 01:22:13 hmbx kernel: do_exit+0x383/0xaf0 Oct 26 01:22:13 hmbx kernel: ? finish_task_switch.isra.0+0x91/0x4c0 Oct 26 01:22:13 hmbx kernel: do_group_exit+0x39/0xb0 Oct 26 01:22:13 hmbx kernel: get_signal+0x14f/0x990 Oct 26 01:22:13 hmbx kernel: ? preempt_count_add+0x68/0xa0 Oct 26 01:22:13 hmbx kernel: ? _raw_spin_lock_irqsave+0x26/0x50 Oct 26 01:22:13 hmbx kernel: arch_do_signal+0x3d/0x750 Oct 26 01:22:13 hmbx kernel: ? do_epoll_wait+0xda/0x670 Oct 26 01:22:13 hmbx kernel: exit_to_user_mode_prepare+0x12d/0x1a0 Oct 26 01:22:13 hmbx kernel: syscall_exit_to_user_mode+0x2c/0x1b0 Oct 26 01:22:13 hmbx kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Oct 26 01:22:13 hmbx kernel: RIP: 0033:0x7f42186895de Oct 26 01:22:13 hmbx kernel: Code: Bad RIP value. Oct 26 01:22:13 hmbx kernel: RSP: 002b:00007fff3dcdea40 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 Oct 26 01:22:13 hmbx kernel: RAX: fffffffffffffffc RBX: 00005596b98d6310 RCX: 00007f42186895de Oct 26 01:22:13 hmbx kernel: RDX: 0000000000000020 RSI: 00007fff3dcdea70 RDI: 000000000000000d Oct 26 01:22:13 hmbx kernel: RBP: 00005596b98d6310 R08: 0000000000000002 R09: 00007fff3dcded80 Oct 26 01:22:13 hmbx kernel: R10: 00000000ffffffff R11: 0000000000000246 R12: 00005596b98f5040 Oct 26 01:22:13 hmbx kernel: R13: 00007fff3dcdea70 R14: 00000000801c0000 R15: 0000000000000001 This does not happen on the vanilla 5.9.x kernel. Any hints on what to try or which patch to omit would be greatly appreciated! Best, David -- https://sleepmap.de
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