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/b[ 31.828552] random: nonblocking pool is initialized us/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:~# 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:1146,INA:0,ON:1147,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:1146,INA:0,ON:1147,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:625,INA:521,ON:1147,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:625,INA:521,ON:1147,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 [ 36.251922] PM: Syncing filesystems ... done. [ 37.481475] PM: Preparing system for mem sleep [ 37.505096] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 37.511871] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 37.519256] PM: Entering mem sleep [ 37.521118] Suspending console(s) (use no_console_suspend to debug) [ 37.553283] PM: suspend of devices complete after 21.911 msecs [ 37.561737] PM: late suspend of devices complete after 8.422 msecs [ 37.571258] PM: noirq suspend of devices complete after 9.490 msecs [ 37.571380] Disabling non-boot CPUs ... [ 37.571411] Successfully put all powerdomains to target state [ 37.576934] PM: noirq resume of devices complete after 5.432 msecs [ 37.577117] In-band Error seen by MPU at address 0 [ 37.577117] ------------[ cut here ]------------ [ 37.577148] WARNING: CPU: 0 PID: 1509 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 37.577178] Modules linked in: [ 37.577178] CPU: 0 PID: 1509 Comm: echo Not tainted 3.19.0-rc4-118442-geaa27f3 #1 [ 37.577209] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 37.577239] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 37.577270] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 37.577301] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 37.577301] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 37.577331] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 37.577362] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 37.577362] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 37.577392] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 37.577392] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 37.577423] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 37.577453] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 37.577453] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 37.577453] Exception stack(0xde635dd0 to 0xde635e18) [ 37.577484] 5dc0: 00000001 de69ede8 00000000 de69e800 [ 37.577484] 5de0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 37.577514] 5e00: c0abe278 de635e18 c0083728 c05db6bc 20000013 ffffffff [ 37.577545] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 37.577545] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 37.577575] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 37.577606] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 37.577636] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 37.577667] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 37.577667] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 37.577697] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 37.577728] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 37.577758] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 37.577758] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 37.577789] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 37.577789] ---[ end trace 93962d4e62cf97c4 ]--- [ 37.584716] PM: early resume of devices complete after 5.889 msecs [ 37.978424] PM: resume of devices complete after 393.554 msecs [ 38.156188] PM: Finishing wakeup. [ 38.157989] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1283,INA:0,ON:1284,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:1283,INA:0,ON:1284,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:757,INA:526,ON:1284,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:757,INA:526,ON:1284,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 [ 40.783935] PM: Syncing filesystems ... done. [ 42.030212] PM: Preparing system for mem sleep [ 42.034942] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 42.040863] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 42.047271] PM: Entering mem sleep [ 42.049163] Suspending console(s) (use no_console_suspend to debug) [ 42.074859] PM: suspend of devices complete after 15.716 msecs [ 42.083496] PM: late suspend of devices complete after 8.575 msecs [ 42.092376] PM: noirq suspend of devices complete after 8.850 msecs [ 42.092407] Disabling non-boot CPUs ... [ 42.092407] Successfully put all powerdomains to target state [ 42.097595] PM: noirq resume of devices complete after 5.096 msecs [ 42.097717] In-band Error seen by MPU at address 0 [ 42.097747] ------------[ cut here ]------------ [ 42.097778] WARNING: CPU: 0 PID: 1513 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 42.097778] Modules linked in: [ 42.097808] CPU: 0 PID: 1513 Comm: echo Tainted: G W 3.19.0-rc4-118442-geaa27f3 #1 [ 42.097808] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 42.097869] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 42.097900] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 42.097900] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 42.097930] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 42.097930] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 42.097961] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 42.097991] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 42.097991] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 42.098022] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 42.098052] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 42.098052] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 42.098083] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 42.098083] Exception stack(0xde635dd0 to 0xde635e18) [ 42.098083] 5dc0: 00000001 de69ede8 00000000 de69e800 [ 42.098114] 5de0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 42.098114] 5e00: c0abe278 de635e18 c0083728 c05db6bc 20000013 ffffffff [ 42.098144] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 42.098175] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 42.098205] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 42.098236] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 42.098266] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 42.098266] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 42.098297] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 42.098327] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 42.098358] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 42.098358] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 42.098388] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 42.098388] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 42.098419] ---[ end trace 93962d4e62cf97c5 ]--- [ 42.105316] PM: early resume of devices complete after 5.889 msecs [ 42.477508] PM: resume of devices complete after 372.039 msecs [ 42.655059] PM: Finishing wakeup. [ 42.656860] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1404,INA:0,ON:1405,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:1404,INA:0,ON:1405,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:873,INA:531,ON:1405,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:873,INA:531,ON:1405,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:1621,INA:0,ON:1622,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:7,ON:34,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:33,INA:0,ON:34,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1621,INA:0,ON:1622,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:1084,INA:537,ON:1622,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1084,INA:537,ON:1622,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 [ 63.104003] omap3_pm_off_mode_enable: Core OFF disabled due to errata i583 root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 64.111968] PM: Syncing filesystems ... done. [ 64.939422] PM: Preparing system for mem sleep [ 64.944213] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 64.950286] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 64.956573] PM: Entering mem sleep [ 64.958465] Suspending console(s) (use no_console_suspend to debug) [ 64.984100] PM: suspend of devices complete after 15.686 msecs [ 64.992645] PM: late suspend of devices complete after 8.514 msecs [ 65.001373] PM: noirq suspend of devices complete after 8.697 msecs [ 65.001373] Disabling non-boot CPUs ... [ 65.001403] Successfully put all powerdomains to target state [ 65.007202] PM: noirq resume of devices complete after 5.706 msecs [ 65.007324] In-band Error seen by MPU at address 0 [ 65.007354] ------------[ cut here ]------------ [ 65.007385] WARNING: CPU: 0 PID: 1555 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.007385] Modules linked in: [ 65.007415] CPU: 0 PID: 1555 Comm: echo Tainted: G W 3.19.0-rc4-118442-geaa27f3 #1 [ 65.007415] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 65.007446] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.007476] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.007507] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.007537] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.007537] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.007568] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.007568] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.007598] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.007629] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.007629] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.007659] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.007659] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.007690] Exception stack(0xde5b5dd0 to 0xde5b5e18) [ 65.007690] 5dc0: 00000001 de711928 00000000 de711340 [ 65.007720] 5de0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.007720] 5e00: c0abe278 de5b5e18 c0083728 c05db6bc 20000153 ffffffff [ 65.007751] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.007781] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.007812] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.007843] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.007843] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.007873] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.007904] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.007904] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.007934] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.007965] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.007965] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.007995] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.007995] ---[ end trace 93962d4e62cf97c6 ]--- [ 65.015167] PM: early resume of devices complete after 5.859 msecs [ 65.387329] PM: resume of devices complete after 372.039 msecs [ 65.564941] PM: Finishing wakeup. [ 65.566772] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:53,RET:1724,INA:0,ON:1778,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:7,ON:35,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:33,INA:0,ON:35,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:53,RET:1724,INA:0,ON:1778,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:1231,INA:545,ON:1778,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1231,INA:545,ON:1778,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 [ 68.212402] PM: Syncing filesystems ... done. [ 69.467132] PM: Preparing system for mem sleep [ 69.471923] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 69.477935] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 69.484191] PM: Entering mem sleep [ 69.486053] Suspending console(s) (use no_console_suspend to debug) [ 69.511871] PM: suspend of devices complete after 15.808 msecs [ 69.520294] PM: late suspend of devices complete after 8.361 msecs [ 69.529144] PM: noirq suspend of devices complete after 8.850 msecs [ 69.529174] Disabling non-boot CPUs ... [ 69.529205] Successfully put all powerdomains to target state [ 69.534820] PM: noirq resume of devices complete after 5.523 msecs [ 69.534942] In-band Error seen by MPU at address 0 [ 69.534973] ------------[ cut here ]------------ [ 69.535003] WARNING: CPU: 0 PID: 1557 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 69.535003] Modules linked in: [ 69.535034] CPU: 0 PID: 1557 Comm: echo Tainted: G W 3.19.0-rc4-118442-geaa27f3 #1 [ 69.535034] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 69.535095] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 69.535125] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 69.535125] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 69.535156] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 69.535156] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 69.535186] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 69.535217] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 69.535217] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 69.535247] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 69.535278] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 69.535278] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 69.535308] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 69.535308] Exception stack(0xde5b5dd0 to 0xde5b5e18) [ 69.535308] 5dc0: 00000001 de711928 00000000 de711340 [ 69.535339] 5de0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 69.535339] 5e00: c0abe278 de5b5e18 c0083728 c05db6bc 20000153 ffffffff [ 69.535369] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 69.535400] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 69.535430] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 69.535461] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 69.535491] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 69.535491] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 69.535522] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 69.535552] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 69.535583] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 69.535583] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 69.535614] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 69.535614] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 69.535644] ---[ end trace 93962d4e62cf97c7 ]--- [ 69.542572] PM: early resume of devices complete after 5.828 msecs [ 69.916870] PM: resume of devices complete after 374.145 msecs [ 70.094482] PM: Finishing wakeup. [ 70.096313] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:176,RET:1724,INA:0,ON:1901,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:7,ON:36,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:2,RET:33,INA:0,ON:36,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:176,RET:1724,INA:0,ON:1901,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:1347,INA:551,ON:1901,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1347,INA:551,ON:1901,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:366,RET:1724,INA:0,ON:2091,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:9,ON:64,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:28,RET:35,INA:0,ON:64,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:366,RET:1724,INA:0,ON:2091,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:30,RET:1504,INA:556,ON:2091,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:30,RET:1504,INA:556,ON:2091,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