怘€æ€˜€`3f<€fÀæøÀ̆ž?`??f?æžf<øž`??ð3ž<3ž<` $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste [ 31.913208] random: nonblocking pool is initialized -s -d' '`; do ls -l $u/power/autosuspend_delay_ms; cat $u/power/autos uspend_delay_ms; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806a000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806c000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49020000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49042000.serial/power/autosuspend_delay_ms -1 root@beagleboard:~# root@beagleboard:~# echo 0 > /debug/pm_debug/enable_off_mode root@beagleboard:~# root@beagleboard:~# %% Baseline pm_debug count dump cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1129,INA:0,ON:1130,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1129,INA:0,ON:1130,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:628,INA:501,ON:1130,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:628,INA:501,ON:1130,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (14) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (22) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do echo enabled > $u/power/wakeup; done root@beagleboard:~# %% Start retention double suspend/resume UART wakeup test root@beagleboard:~# for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do echo auto > $u/power/control; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do ls -l $u/power/wakeup; cat $u/power/wakeup; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO0/power/wakeup enabled -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO1/power/wakeup enabled -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO2/power/wakeup enabled -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO3/power/wakeup for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do ls -l $u/power/control; cat $u/power/control; done enabled root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do ls -l $u/power/control; cat $u/power/control; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO0/power/control auto -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO1/power/control auto -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO2/power/control auto -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO3/power/control echo mem > /sys/power/state auto root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 36.332641] PM: Syncing filesystems ... done. [ 37.564575] PM: Preparing system for mem sleep [ 37.588012] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 37.595001] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 37.602233] PM: Entering mem sleep [ 37.604095] Suspending console(s) (use no_console_suspend to debug) [ 37.636413] PM: suspend of devices complete after 22.003 msecs [ 37.645324] PM: late suspend of devices complete after 8.880 msecs [ 37.654968] PM: noirq suspend of devices complete after 9.582 msecs [ 37.655090] Disabling non-boot CPUs ... [ 37.655151] Successfully put all powerdomains to target state [ 37.660736] PM: noirq resume of devices complete after 5.493 msecs [ 37.660919] In-band Error seen by MPU at address 0 [ 37.660949] ------------[ cut here ]------------ [ 37.660980] WARNING: CPU: 0 PID: 1505 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 37.660980] Modules linked in: [ 37.661010] CPU: 0 PID: 1505 Comm: echo Not tainted 3.19.0-rc1-00005-g1c7e36b #1 [ 37.661010] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 37.661071] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 37.661071] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 37.661102] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 37.661132] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 37.661132] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 37.661163] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 37.661163] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 37.661193] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 37.661224] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 37.661224] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 37.661254] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 37.661254] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 37.661254] Exception stack(0xde53fdd0 to 0xde53fe18) [ 37.661285] fdc0: 00000001 de53d5e8 00000000 de53d000 [ 37.661285] fde0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 37.661315] fe00: c0abe238 de53fe18 c008372c c05db5f4 20000013 ffffffff [ 37.661346] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 37.661346] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 37.661376] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 37.661407] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 37.661437] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 37.661437] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 37.661468] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 37.661499] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 37.661529] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 37.661529] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 37.661560] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 37.661560] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 37.661590] ---[ end trace 3dfadbc897d5e01a ]--- [ 37.668457] PM: early resume of devices complete after 5.798 msecs [ 38.065887] PM: resume of devices complete after 397.308 msecs [ 38.242553] PM: Finishing wakeup. [ 38.244384] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1265,INA:0,ON:1266,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1265,INA:0,ON:1266,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:756,INA:509,ON:1266,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:756,INA:509,ON:1266,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (14) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (27) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 40.867767] PM: Syncing filesystems ... done. [ 42.116516] PM: Preparing system for mem sleep [ 42.121276] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 42.126983] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 42.133331] PM: Entering mem sleep [ 42.135192] Suspending console(s) (use no_console_suspend to debug) [ 42.161010] PM: suspend of devices complete after 15.777 msecs [ 42.169769] PM: late suspend of devices complete after 8.758 msecs [ 42.178619] PM: noirq suspend of devices complete after 8.819 msecs [ 42.178771] Disabling non-boot CPUs ... [ 42.178802] Successfully put all powerdomains to target state [ 42.184051] PM: noirq resume of devices complete after 5.187 msecs [ 42.184204] In-band Error seen by MPU at address 0 [ 42.184204] ------------[ cut here ]------------ [ 42.184234] WARNING: CPU: 0 PID: 1509 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 42.184265] Modules linked in: [ 42.184265] CPU: 0 PID: 1509 Comm: echo Tainted: G W 3.19.0-rc1-00005-g1c7e36b #1 [ 42.184265] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 42.184326] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 42.184356] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 42.184387] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 42.184387] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 42.184417] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 42.184448] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 42.184448] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 42.184478] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 42.184478] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 42.184509] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 42.184509] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 42.184539] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 42.184539] Exception stack(0xde53fdd0 to 0xde53fe18) [ 42.184570] fdc0: 00000001 de53d5e8 00000000 de53d000 [ 42.184570] fde0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 42.184600] fe00: c0abe238 de53fe18 c008372c c05db5f4 20000013 ffffffff [ 42.184600] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 42.184631] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 42.184661] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 42.184692] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 42.184692] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 42.184722] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 42.184753] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 42.184783] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 42.184783] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 42.184814] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 42.184844] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 42.184844] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 42.184844] ---[ end trace 3dfadbc897d5e01b ]--- [ 42.191833] PM: early resume of devices complete after 5.920 msecs [ 42.564514] PM: resume of devices complete after 372.528 msecs [ 42.741638] PM: Finishing wakeup. [ 42.743438] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1380,INA:0,ON:1381,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:2,INA:0,ON:3,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:2,INA:0,ON:3,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1380,INA:0,ON:1381,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:864,INA:516,ON:1381,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:864,INA:516,ON:1381,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (14) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (27) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# ./test_rootfs_access_nonexistent_file__ret_susp -sh: ./test_rootfs_access_nonexistent_file__ret_susp: not found root@beagleboard:~# root@beagleboard:~# %% End retention double suspend/resume UART wakeup test %% Start retention dynamic idle UART wakeup test for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do echo 3000 > $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do ls -l $u/power/autosuspend_delay_ms; cat $u/power/autos uspend_delay_ms; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806a000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806c000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49020000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49042000.serial/power/autosuspend_delay_ms 3000 root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1581,INA:0,ON:1582,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:26,INA:3,ON:30,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:29,INA:0,ON:30,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1581,INA:0,ON:1582,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:0,RET:1058,INA:523,ON:1582,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1058,INA:523,ON:1582,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (RET),OFF:0,RET:1,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (13) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (20) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# ./test_rootfs_access_nonexistent_file__ret_dyn -sh: ./test_rootfs_access_nonexistent_file__ret_dyn: not found root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do echo -1 > $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do ls -l $u/power/autosuspend_delay_ms; cat $u/power/autos uspend_delay_ms; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806a000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806c000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49020000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49042000.serial/power/autosuspend_delay_ms -1 root@beagleboard:~# root@beagleboard:~# %% End retention dynamic idle UART wakeup test %% Start off-mode double suspend UART wakeup test echo 1 > /debug/pm_debug/enable_off_mode [ 63.190704] omap3_pm_off_mode_enable: Core OFF disabled due to errata i583 root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 64.198120] PM: Syncing filesystems ... done. [ 65.028350] PM: Preparing system for mem sleep [ 65.033142] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 65.039062] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 65.045196] PM: Entering mem sleep [ 65.047058] Suspending console(s) (use no_console_suspend to debug) [ 65.072814] PM: suspend of devices complete after 15.747 msecs [ 65.081512] PM: late suspend of devices complete after 8.666 msecs [ 65.090545] PM: noirq suspend of devices complete after 8.972 msecs [ 65.090545] Disabling non-boot CPUs ... [ 65.090576] Successfully put all powerdomains to target state [ 65.096313] PM: noirq resume of devices complete after 5.645 msecs [ 65.096466] In-band Error seen by MPU at address 0 [ 65.096466] ------------[ cut here ]------------ [ 65.096496] WARNING: CPU: 0 PID: 1551 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.096496] Modules linked in: [ 65.096527] CPU: 0 PID: 1551 Comm: echo Tainted: G W 3.19.0-rc1-00005-g1c7e36b #1 [ 65.096527] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 65.096588] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.096588] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.096618] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.096649] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.096649] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.096679] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.096679] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.096710] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.096740] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.096740] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.096771] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.096771] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.096771] Exception stack(0xde52fdd0 to 0xde52fe18) [ 65.096801] fdc0: 00000001 de783a68 00000000 de783480 [ 65.096801] fde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.096832] fe00: c0abe238 de52fe18 c008372c c05db5f4 20000153 ffffffff [ 65.096862] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.096862] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.096893] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.096923] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.096954] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.096954] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.096984] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.097015] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.097015] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.097045] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.097076] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.097076] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.097076] ---[ end trace 3dfadbc897d5e01c ]--- [ 65.104309] PM: early resume of devices complete after 5.920 msecs [ 65.474395] PM: resume of devices complete after 369.934 msecs [ 65.650878] PM: Finishing wakeup. [ 65.652679] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:51,RET:1684,INA:0,ON:1736,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:27,INA:3,ON:31,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:29,INA:0,ON:31,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:51,RET:1684,INA:0,ON:1736,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:1,RET:1204,INA:530,ON:1736,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1204,INA:530,ON:1736,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (14) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (27) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 68.301147] PM: Syncing filesystems ... done. [ 69.551452] PM: Preparing system for mem sleep [ 69.556121] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 69.562194] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 69.568450] PM: Entering mem sleep [ 69.570312] Suspending console(s) (use no_console_suspend to debug) [ 69.596008] PM: suspend of devices complete after 15.625 msecs [ 69.604797] PM: late suspend of devices complete after 8.758 msecs [ 69.613800] PM: noirq suspend of devices complete after 8.972 msecs [ 69.613800] Disabling non-boot CPUs ... [ 69.613830] Successfully put all powerdomains to target state [ 69.619537] PM: noirq resume of devices complete after 5.615 msecs [ 69.619689] In-band Error seen by MPU at address 0 [ 69.619689] ------------[ cut here ]------------ [ 69.619720] WARNING: CPU: 0 PID: 1553 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 69.619750] Modules linked in: [ 69.619750] CPU: 0 PID: 1553 Comm: echo Tainted: G W 3.19.0-rc1-00005-g1c7e36b #1 [ 69.619750] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 69.619812] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 69.619842] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 69.619873] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 69.619873] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 69.619903] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 69.619903] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 69.619934] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 69.619964] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 69.619964] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 69.619995] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 69.619995] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 69.620025] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 69.620025] Exception stack(0xde52fdd0 to 0xde52fe18) [ 69.620025] fdc0: 00000001 de783a68 00000000 de783480 [ 69.620056] fde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 69.620056] fe00: c0abe238 de52fe18 c008372c c05db5f4 20000153 ffffffff [ 69.620086] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 69.620117] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 69.620147] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 69.620178] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 69.620178] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 69.620208] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 69.620239] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 69.620269] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 69.620269] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 69.620300] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 69.620300] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 69.620330] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 69.620330] ---[ end trace 3dfadbc897d5e01d ]--- [ 69.627227] PM: early resume of devices complete after 5.798 msecs [ 70.004180] PM: resume of devices complete after 376.800 msecs [ 70.180633] PM: Finishing wakeup. [ 70.182464] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:174,RET:1684,INA:0,ON:1859,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:28,INA:3,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:2,RET:29,INA:0,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:174,RET:1684,INA:0,ON:1859,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:2,RET:1320,INA:536,ON:1859,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1320,INA:536,ON:1859,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (14) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (27) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# ./test_rootfs_access_nonexistent_file__off_susp -sh: ./test_rootfs_access_nonexistent_file__off_susp: not found root@beagleboard:~# root@beagleboard:~# %% End off-mode double suspend UART wakeup test %% Start off-mode dynamic idle UART wakeup test for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do echo 3000 > $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do ls -l $u/power/autosuspend_delay_ms; cat $u/power/autos uspend_delay_ms; done -rw-r--r-- 1 root root 4096 Jul 22 00:19 /sys/bus/platform/drivers/omap_uart/4806a000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:19 /sys/bus/platform/drivers/omap_uart/4806c000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:19 /sys/bus/platform/drivers/omap_uart/49020000.serial/power/autosuspend_delay_ms 3000 -rw-r--r-- 1 root root 4096 Jul 22 00:19 /sys/bus/platform/drivers/omap_uart/49042000.serial/power/autosuspend_delay_ms 3000 root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:365,RET:1684,INA:0,ON:2050,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:54,INA:3,ON:58,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:28,RET:29,INA:0,ON:58,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:365,RET:1684,INA:0,ON:2050,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 cam_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 neon_pwrdm (ON),OFF:28,RET:1479,INA:542,ON:2050,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:28,RET:1479,INA:542,ON:2050,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 iva2_pwrdm (OFF),OFF:1,RET:1,INA:0,ON:2,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0,RET-MEMBANK3-OFF:0,RET-MEMBANK4-OFF:0 usbhost_clkdm->usbhost_pwrdm (1) sgx_clkdm->sgx_pwrdm (0) per_clkdm->per_pwrdm (13) cam_clkdm->cam_pwrdm (0) dss_clkdm->dss_pwrdm (1) d2d_clkdm->core_pwrdm (0) iva2_clkdm->iva2_pwrdm (0) mpu_clkdm->mpu_pwrdm (0) core_l4_clkdm->core_pwrdm (20) core_l3_clkdm->core_pwrdm (1) neon_clkdm->neon_pwrdm (0) root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# ./test_rootfs_access_nonexistent_file__off_dyn -sh: ./test_rootfs_access_nonexistent_file__off_dyn: not found root@beagleboard:~# root@beagleboard:~# %% End off-mode dynamic idle UART wakeup test %% End PM consolidated quick test