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/[ 33.672546] random: nonblocking pool is initialized 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:~# 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:1070,INA:0,ON:1071,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:1070,INA:0,ON:1071,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:544,INA:526,ON:1071,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:544,INA:526,ON:1071,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 [ 38.114379] PM: Syncing filesystems ... done. [ 38.334503] Freezing user space processes ... (elapsed 0.004 seconds) done. [ 38.342559] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 38.350219] Suspending console(s) (use no_console_suspend to debug) [ 38.393463] PM: suspend of devices complete after 31.219 msecs [ 38.404571] PM: late suspend of devices complete after 11.047 msecs [ 38.416351] PM: noirq suspend of devices complete after 11.718 msecs [ 38.416503] Disabling non-boot CPUs ... [ 38.416564] Successfully put all powerdomains to target state [ 38.423339] PM: noirq resume of devices complete after 6.652 msecs [ 38.423583] In-band Error seen by MPU at address 0 [ 38.423583] ------------[ cut here ]------------ [ 38.423614] WARNING: CPU: 0 PID: 1487 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 38.423645] Modules linked in: [ 38.423675] CPU: 0 PID: 1487 Comm: echo Not tainted 3.19.0-rc1-14143-g99d076b #1 [ 38.423675] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 38.423736] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 38.423767] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 38.423797] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 38.423828] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 38.423828] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 38.423858] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 38.423889] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 38.423919] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 38.423919] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 38.423950] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 38.423980] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 38.423980] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 38.424011] Exception stack(0xce703dd0 to 0xce703e18) [ 38.424011] 3dc0: 00000001 ce51cae8 00000000 ce51c500 [ 38.424041] 3de0: 60000113 ce152860 ce152860 c0921a98 00000000 c0945464 60000113 c09216b0 [ 38.424072] 3e00: c0abe898 ce703e18 c008371c c05db5f4 20000113 ffffffff [ 38.424102] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 38.424102] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 38.424163] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 38.424194] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 38.424224] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 38.424224] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 38.424255] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 38.424285] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 38.424316] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 38.424346] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 38.424377] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 38.424377] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 38.424407] ---[ end trace 24648cd8cc9a8f38 ]--- [ 38.432983] PM: early resume of devices complete after 7.293 msecs [ 38.594177] PM: resume of devices complete after 161.041 msecs [ 38.773681] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1208,INA:0,ON:1209,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:1208,INA:0,ON:1209,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:658,INA:550,ON:1209,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:658,INA:550,ON:1209,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 [ 41.635803] PM: Syncing filesystems ... done. [ 41.983978] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 41.990203] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 41.996734] Suspending console(s) (use no_console_suspend to debug) [ 42.027557] PM: suspend of devices complete after 19.134 msecs [ 42.038513] PM: late suspend of devices complete after 10.925 msecs [ 42.049499] PM: noirq suspend of devices complete after 10.925 msecs [ 42.049530] Disabling non-boot CPUs ... [ 42.049560] Successfully put all powerdomains to target state [ 42.056091] PM: noirq resume of devices complete after 6.439 msecs [ 42.056274] In-band Error seen by MPU at address 0 [ 42.056274] ------------[ cut here ]------------ [ 42.056335] WARNING: CPU: 0 PID: 1491 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 42.056335] Modules linked in: [ 42.056365] CPU: 0 PID: 1491 Comm: echo Tainted: G W 3.19.0-rc1-14143-g99d076b #1 [ 42.056365] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 42.056427] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 42.056457] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 42.056488] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 42.056518] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 42.056518] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 42.056549] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 42.056579] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 42.056610] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 42.056640] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 42.056640] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 42.056671] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 42.056701] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 42.056701] Exception stack(0xce703dd0 to 0xce703e18) [ 42.056732] 3dc0: 00000001 ce51cae8 00000000 ce51c500 [ 42.056732] 3de0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 42.056762] 3e00: c0abe898 ce703e18 c008371c c05db5f4 20000013 ffffffff [ 42.056793] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 42.056823] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 42.056854] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 42.056884] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 42.056915] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 42.056945] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 42.056976] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 42.057006] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 42.057037] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 42.057037] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 42.057067] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 42.057098] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 42.057098] ---[ end trace 24648cd8cc9a8f39 ]--- [ 42.065673] PM: early resume of devices complete after 7.263 msecs [ 42.223144] PM: resume of devices complete after 157.318 msecs [ 42.402191] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1329,INA:0,ON:1330,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:1329,INA:0,ON:1330,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:771,INA:558,ON:1330,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:771,INA:558,ON:1330,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:1549,INA:0,ON:1550,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:1549,INA:0,ON:1550,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:981,INA:568,ON:1550,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:981,INA:568,ON:1550,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 [ 63.065093] PM: Syncing filesystems ... done. [ 63.432861] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 63.439025] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 63.445678] Suspending console(s) (use no_console_suspend to debug) [ 63.476318] PM: suspend of devices complete after 18.951 msecs [ 63.487213] PM: late suspend of devices complete after 10.833 msecs [ 63.498199] PM: noirq suspend of devices complete after 10.925 msecs [ 63.498229] Disabling non-boot CPUs ... [ 63.498260] Successfully put all powerdomains to target state [ 63.519531] PM: noirq resume of devices complete after 21.148 msecs [ 63.519683] In-band Error seen by MPU at address 0 [ 63.519683] ------------[ cut here ]------------ [ 63.519744] WARNING: CPU: 0 PID: 1528 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 63.519744] Modules linked in: [ 63.519775] CPU: 0 PID: 1528 Comm: echo Tainted: G W 3.19.0-rc1-14143-g99d076b #1 [ 63.519775] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 63.519836] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 63.519866] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 63.519897] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 63.519927] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 63.519958] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 63.519989] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 63.519989] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 63.520019] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 63.520050] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 63.520080] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 63.520080] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 63.520111] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 63.520111] Exception stack(0xce787dd0 to 0xce787e18) [ 63.520141] 7dc0: 00000001 ce5ccca8 00000000 ce5cc6c0 [ 63.520141] 7de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 63.520172] 7e00: c0abe898 ce787e18 c008371c c05db5f4 20000153 ffffffff [ 63.520202] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 63.520233] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 63.520263] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 63.520294] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 63.520324] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 63.520355] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 63.520385] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 63.520416] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 63.520446] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 63.520477] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 63.520477] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 63.520507] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 63.520507] ---[ end trace 24648cd8cc9a8f3a ]--- [ 63.528930] PM: early resume of devices complete after 7.110 msecs [ 63.682983] PM: resume of devices complete after 153.900 msecs [ 63.861999] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:63,RET:1660,INA:0,ON:1724,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: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:63,RET:1660,INA:0,ON:1724,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:1133,INA:589,ON:1724,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1133,INA:589,ON:1724,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 [ 65.714813] PM: Syncing filesystems ... done. [ 65.869354] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 65.875488] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 65.882019] Suspending console(s) (use no_console_suspend to debug) [ 65.912933] PM: suspend of devices complete after 19.134 msecs [ 65.923919] PM: late suspend of devices complete after 10.955 msecs [ 65.934967] PM: noirq suspend of devices complete after 11.047 msecs [ 65.934997] Disabling non-boot CPUs ... [ 65.935028] Successfully put all powerdomains to target state [ 65.956207] PM: noirq resume of devices complete after 21.026 msecs [ 65.956359] In-band Error seen by MPU at address 0 [ 65.956390] ------------[ cut here ]------------ [ 65.956420] WARNING: CPU: 0 PID: 1530 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.956420] Modules linked in: [ 65.956451] CPU: 0 PID: 1530 Comm: echo Tainted: G W 3.19.0-rc1-14143-g99d076b #1 [ 65.956481] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 65.956512] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.956542] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.956573] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.956604] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.956634] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.956665] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.956665] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.956695] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.956726] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.956756] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.956756] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.956787] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.956787] Exception stack(0xce787dd0 to 0xce787e18) [ 65.956817] 7dc0: 00000001 ce5ccca8 00000000 ce5cc6c0 [ 65.956848] 7de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.956848] 7e00: c0abe898 ce787e18 c008371c c05db5f4 20000153 ffffffff [ 65.956878] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.956909] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.956939] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.956970] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.957000] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.957031] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.957061] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.957092] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.957122] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.957153] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.957153] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.957183] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.957214] ---[ end trace 24648cd8cc9a8f3b ]--- [ 65.965759] PM: early resume of devices complete after 7.263 msecs [ 66.122772] PM: resume of devices complete after 156.829 msecs [ 66.301818] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:175,RET:1660,INA:0,ON:1836,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: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:175,RET:1660,INA:0,ON:1836,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:1224,INA:609,ON:1836,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1224,INA:609,ON:1836,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:366,RET:1660,INA:0,ON:2027,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:19,RET:27,INA:7,ON:54,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:20,RET:33,INA:0,ON:54,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:366,RET:1660,INA:0,ON:2027,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:23,RET:1381,INA:622,ON:2027,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:23,RET:1381,INA:622,ON:2027,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