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 -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 [ 33.757843] random: nonblocking pool is initialized 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:1068,INA:0,ON:1069,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:1068,INA:0,ON:1069,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:496,INA:572,ON:1069,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:496,INA:572,ON:1069,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 (12) 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 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 echo mem > /sys/power/state -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO2/power/control auto root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 38.000274] PM: Syncing filesystems ... done. [ 38.300445] Freezing user space processes ... (elapsed 0.005 seconds) done. [ 38.309753] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 38.317474] Suspending console(s) (use no_console_suspend to debug) [ 38.361328] PM: suspend of devices complete after 31.951 msecs [ 38.372131] PM: late suspend of devices complete after 10.772 msecs [ 38.383941] PM: noirq suspend of devices complete after 11.749 msecs [ 38.384094] Disabling non-boot CPUs ... [ 38.384124] Successfully put all powerdomains to target state [ 38.390899] PM: noirq resume of devices complete after 6.683 msecs [ 38.391143] In-band Error seen by MPU at address 0 [ 38.391143] ------------[ cut here ]------------ [ 38.391174] WARNING: CPU: 0 PID: 1483 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 38.391204] Modules linked in: [ 38.391204] CPU: 0 PID: 1483 Comm: echo Not tainted 3.19.0-rc3-118223-gb1940cd #1 [ 38.391235] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 38.391265] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 38.391326] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 38.391326] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 38.391357] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 38.391387] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 38.391418] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 38.391448] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 38.391448] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 38.391479] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 38.391510] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 38.391540] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 38.391540] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 38.391571] Exception stack(0xce7d5dd0 to 0xce7d5e18) [ 38.391571] 5dc0: 00000001 ce51eae8 00000000 ce51e500 [ 38.391601] 5de0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 38.391601] 5e00: c0abe8d8 ce7d5e18 c008377c c05db70c 20000013 ffffffff [ 38.391632] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 38.391662] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 38.391693] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 38.391754] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 38.391754] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 38.391784] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 38.391815] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 38.391845] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 38.391876] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 38.391906] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 38.391937] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 38.391937] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 38.391967] ---[ end trace 01b7a52dbd5f977c ]--- [ 38.400451] PM: early resume of devices complete after 7.202 msecs [ 38.560119] PM: resume of devices complete after 159.515 msecs [ 38.739715] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1203,INA:0,ON:1204,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:1203,INA:0,ON:1204,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:611,INA:592,ON:1204,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:611,INA:592,ON:1204,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 (12) 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 [ 40.603302] PM: Syncing filesystems ... done. [ 40.948303] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 40.954437] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 40.961090] Suspending console(s) (use no_console_suspend to debug) [ 40.991790] PM: suspend of devices complete after 19.134 msecs [ 41.002471] PM: late suspend of devices complete after 10.620 msecs [ 41.013519] PM: noirq suspend of devices complete after 10.986 msecs [ 41.013549] Disabling non-boot CPUs ... [ 41.013580] Successfully put all powerdomains to target state [ 41.020172] PM: noirq resume of devices complete after 6.500 msecs [ 41.020355] In-band Error seen by MPU at address 0 [ 41.020355] ------------[ cut here ]------------ [ 41.020385] WARNING: CPU: 0 PID: 1488 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 41.020416] Modules linked in: [ 41.020416] CPU: 0 PID: 1488 Comm: echo Tainted: G W 3.19.0-rc3-118223-gb1940cd #1 [ 41.020446] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 41.020507] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 41.020538] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 41.020568] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 41.020568] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 41.020599] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 41.020629] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 41.020660] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 41.020690] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 41.020690] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 41.020721] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 41.020751] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 41.020751] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 41.020782] Exception stack(0xce573dd0 to 0xce573e18) [ 41.020782] 3dc0: 00000001 ce51f5e8 00000000 ce51f000 [ 41.020812] 3de0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 41.020843] 3e00: c0abe8d8 ce573e18 c008377c c05db70c 20000013 ffffffff [ 41.020874] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 41.020874] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 41.020935] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 41.020965] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 41.020996] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 41.020996] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 41.021057] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 41.021087] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 41.021087] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 41.021118] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 41.021148] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 41.021179] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 41.021179] ---[ end trace 01b7a52dbd5f977d ]--- [ 41.029663] PM: early resume of devices complete after 7.202 msecs [ 41.189056] PM: resume of devices complete after 159.240 msecs [ 41.368103] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1318,INA:0,ON:1319,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:1318,INA:0,ON:1319,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:713,INA:605,ON:1319,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:713,INA:605,ON:1319,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 (12) 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 root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1530,INA:0,ON:1531,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:4,ON:31,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:30,INA:0,ON:31,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1530,INA:0,ON:1531,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:916,INA:614,ON:1531,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:916,INA:614,ON:1531,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 (12) 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 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 root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 62.028961] PM: Syncing filesystems ... done. [ 62.393554] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 62.399719] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 62.406249] Suspending console(s) (use no_console_suspend to debug) [ 62.437347] PM: suspend of devices complete after 19.409 msecs [ 62.448150] PM: late suspend of devices complete after 10.803 msecs [ 62.459350] PM: noirq suspend of devices complete after 11.138 msecs [ 62.459381] Disabling non-boot CPUs ... [ 62.459411] Successfully put all powerdomains to target state [ 62.480590] PM: noirq resume of devices complete after 21.057 msecs [ 62.480773] In-band Error seen by MPU at address 0 [ 62.480804] ------------[ cut here ]------------ [ 62.480834] WARNING: CPU: 0 PID: 1525 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 62.480865] Modules linked in: [ 62.480865] CPU: 0 PID: 1525 Comm: echo Tainted: G W 3.19.0-rc3-118223-gb1940cd #1 [ 62.480895] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 62.480926] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 62.480987] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 62.480987] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 62.481018] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 62.481048] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 62.481079] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 62.481109] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 62.481109] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 62.481140] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 62.481170] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 62.481201] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 62.481201] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 62.481231] Exception stack(0xce5c1dd0 to 0xce5c1e18) [ 62.481231] 1dc0: 00000001 ce56d6e8 00000000 ce56d100 [ 62.481262] 1de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 62.481292] 1e00: c0abe8d8 ce5c1e18 c008377c c05db70c 20000153 ffffffff [ 62.481323] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 62.481323] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 62.481384] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 62.481414] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 62.481445] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 62.481445] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 62.481506] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 62.481536] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 62.481536] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 62.481567] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 62.481597] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 62.481628] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 62.481628] ---[ end trace 01b7a52dbd5f977e ]--- [ 62.490234] PM: early resume of devices complete after 7.293 msecs [ 62.668273] PM: resume of devices complete after 177.886 msecs [ 62.847351] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:59,RET:1638,INA:0,ON:1698,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:1,RET:26,INA:4,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:30,INA:0,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:59,RET:1638,INA:0,ON:1698,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:1073,INA:623,ON:1698,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1073,INA:623,ON:1698,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 (12) 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 [ 65.676208] PM: Syncing filesystems ... done. [ 66.016754] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 66.022949] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 66.029571] Suspending console(s) (use no_console_suspend to debug) [ 66.060729] PM: suspend of devices complete after 19.470 msecs [ 66.071685] PM: late suspend of devices complete after 10.925 msecs [ 66.082885] PM: noirq suspend of devices complete after 11.169 msecs [ 66.082916] Disabling non-boot CPUs ... [ 66.082946] Successfully put all powerdomains to target state [ 66.104064] PM: noirq resume of devices complete after 20.996 msecs [ 66.104248] In-band Error seen by MPU at address 0 [ 66.104248] ------------[ cut here ]------------ [ 66.104278] WARNING: CPU: 0 PID: 1527 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 66.104309] Modules linked in: [ 66.104339] CPU: 0 PID: 1527 Comm: echo Tainted: G W 3.19.0-rc3-118223-gb1940cd #1 [ 66.104339] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 66.104400] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 66.104431] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 66.104461] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 66.104492] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 66.104492] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 66.104522] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 66.104553] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 66.104583] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 66.104614] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 66.104614] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 66.104644] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 66.104675] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 66.104675] Exception stack(0xce5c1dd0 to 0xce5c1e18) [ 66.104705] 1dc0: 00000001 ce56d6e8 00000000 ce56d100 [ 66.104705] 1de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 66.104736] 1e00: c0abe8d8 ce5c1e18 c008377c c05db70c 20000153 ffffffff [ 66.104766] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 66.104797] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 66.104827] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 66.104858] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 66.104888] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 66.104919] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 66.104949] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 66.104980] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 66.105010] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 66.105041] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 66.105041] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 66.105072] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 66.105102] ---[ end trace 01b7a52dbd5f977f ]--- [ 66.113677] PM: early resume of devices complete after 7.171 msecs [ 66.268737] PM: resume of devices complete after 154.907 msecs [ 66.447875] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:173,RET:1638,INA:0,ON:1812,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:2,RET:26,INA:4,ON:33,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:2,RET:30,INA:0,ON:33,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:173,RET:1638,INA:0,ON:1812,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:1175,INA:634,ON:1812,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1175,INA:634,ON:1812,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 (12) 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 00:18 /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 root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:374,RET:1638,INA:0,ON:2013,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:22,RET:27,INA:6,ON:56,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:23,RET:32,INA:0,ON:56,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:374,RET:1638,INA:0,ON:2013,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:25,RET:1339,INA:648,ON:2013,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:25,RET:1339,INA:648,ON:2013,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 (12) 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