Hello, I am running 4.4.24-4-default from devel:ARM:Factory:Contrib:RaspberryPi3
and sometimes see the following when do readings from /sys like # cat /sys/devices/system/cpu/cpu?/cpufreq/cpuinfo_cur_freq [ 9138.093049] INFO: task cat:4444 blocked for more than 50 seconds. [ 9138.093058] Not tainted 4.4.24-4-default #1 [ 9138.093060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 9138.093073] cat D ffff800000086c28 0 4444 4426 0x00000001 [ 9138.093076] Call trace: [ 9138.093090] [<ffff800000086c28>] __switch_to+0x90/0xa8 [ 9138.093097] [<ffff800000749d14>] __schedule+0x234/0x758 [ 9138.093100] [<ffff80000074a278>] schedule+0x40/0xa0 [ 9138.093105] [<ffff80000074d25c>] schedule_timeout+0x214/0x280 [ 9138.093109] [<ffff80000074ae8c>] wait_for_common+0xb4/0x168 [ 9138.093113] [<ffff80000074af68>] wait_for_completion+0x28/0x38 [ 9138.093119] [<ffff8000005dd6f0>] rpi_firmware_property_list+0x120/0x280 [ 9138.093122] [<ffff8000005dd8d0>] rpi_firmware_property+0x80/0xc8 [ 9138.093133] [<ffff7ffffc115088>] bcm2835_cpufreq_get_clock+0x38/0x88 [bcm2835_cpufreq] [ 9138.093138] [<ffff7ffffc1150f4>] bcm2835_cpufreq_get+0x1c/0x28 [bcm2835_cpufreq] [ 9138.093144] [<ffff8000005d1264>] __cpufreq_get+0x34/0xc8 [ 9138.093148] [<ffff8000005d3304>] show_cpuinfo_cur_freq+0x24/0x78 [ 9138.093151] [<ffff8000005d1208>] show+0x48/0x70 [ 9138.093157] [<ffff8000002cb990>] sysfs_kf_seq_show+0xc0/0x158 [ 9138.093161] [<ffff8000002c9f94>] kernfs_seq_show+0x44/0x50 [ 9138.093166] [<ffff80000026cdac>] seq_read+0x17c/0x438 [ 9138.093169] [<ffff8000002cac34>] kernfs_fop_read+0x124/0x1b0 [ 9138.093175] [<ffff800000246430>] __vfs_read+0x48/0xf8 [ 9138.093178] [<ffff800000246e38>] vfs_read+0x88/0x160 [ 9138.093182] [<ffff800000247bc4>] SyS_read+0x54/0xb0 [ 9138.093187] [<ffff800000085e04>] el0_svc_naked+0x38/0x3c So, what do you think? Is it known? Probably I just need to try kernel 4.8.6 from openSUSE:Factory:ARM? -- To unsubscribe, e-mail: [email protected] To contact the owner, e-mail: [email protected]
