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/d[ 31.939910] random: nonblocking pool is initialized rivers/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:1179,INA:0,ON:1180,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:1179,INA:0,ON:1180,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:653,INA:526,ON:1180,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:653,INA:526,ON:1180,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 echo mem > /sys/power/state -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/class/tty/ttyO3/power/control auto root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 36.367675] PM: Syncing filesystems ... done. [ 37.595489] PM: Preparing system for mem sleep [ 37.617462] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 37.624389] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 37.631530] PM: Entering mem sleep [ 37.633514] Suspending console(s) (use no_console_suspend to debug) [ 37.665740] PM: suspend of devices complete after 21.911 msecs [ 37.674652] PM: late suspend of devices complete after 8.880 msecs [ 37.684234] PM: noirq suspend of devices complete after 9.552 msecs [ 37.684387] Disabling non-boot CPUs ... [ 37.684417] Successfully put all powerdomains to target state [ 37.689819] PM: noirq resume of devices complete after 5.340 msecs [ 37.690002] In-band Error seen by MPU at address 0 [ 37.690002] ------------[ cut here ]------------ [ 37.690063] WARNING: CPU: 0 PID: 1513 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 37.690063] Modules linked in: [ 37.690093] CPU: 0 PID: 1513 Comm: echo Not tainted 3.19.0-rc2-14206-gb7392d2 #1 [ 37.690093] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 37.690124] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 37.690155] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 37.690185] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 37.690185] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 37.690216] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 37.690246] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 37.690246] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 37.690277] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 37.690277] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 37.690307] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 37.690338] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 37.690338] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 37.690338] Exception stack(0xde723dd0 to 0xde723e18) [ 37.690368] 3dc0: 00000001 de53d5e8 00000000 de53d000 [ 37.690368] 3de0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 37.690399] 3e00: c0abe238 de723e18 c008371c c05db594 20000013 ffffffff [ 37.690429] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 37.690429] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 37.690460] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 37.690490] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 37.690521] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 37.690521] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 37.690551] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 37.690582] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 37.690612] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 37.690612] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 37.690643] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 37.690643] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 37.690673] ---[ end trace 0082e61f4305834e ]--- [ 37.697631] PM: early resume of devices complete after 5.889 msecs [ 38.089599] PM: resume of devices complete after 391.845 msecs [ 38.266204] PM: Finishing wakeup. [ 38.268005] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1316,INA:0,ON:1317,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:1316,INA:0,ON:1317,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:781,INA:535,ON:1317,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:781,INA:535,ON:1317,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 [ 40.896331] PM: Syncing filesystems ... done. [ 42.154327] PM: Preparing system for mem sleep [ 42.158966] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 42.165008] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 42.171264] PM: Entering mem sleep [ 42.173187] Suspending console(s) (use no_console_suspend to debug) [ 42.198699] PM: suspend of devices complete after 15.472 msecs [ 42.207458] PM: late suspend of devices complete after 8.697 msecs [ 42.216400] PM: noirq suspend of devices complete after 8.911 msecs [ 42.216400] Disabling non-boot CPUs ... [ 42.216430] Successfully put all powerdomains to target state [ 42.221649] PM: noirq resume of devices complete after 5.126 msecs [ 42.221771] In-band Error seen by MPU at address 0 [ 42.221801] ------------[ cut here ]------------ [ 42.221832] WARNING: CPU: 0 PID: 1517 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 42.221832] Modules linked in: [ 42.221862] CPU: 0 PID: 1517 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 42.221862] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 42.221923] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 42.221954] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 42.221954] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 42.221984] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 42.221984] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 42.222015] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 42.222045] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 42.222045] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 42.222076] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 42.222076] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 42.222106] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 42.222137] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 42.222137] Exception stack(0xde4eddd0 to 0xde4ede18) [ 42.222137] ddc0: 00000001 de7b7a68 00000000 de7b7480 [ 42.222167] dde0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 42.222167] de00: c0abe238 de4ede18 c008371c c05db594 20000013 ffffffff [ 42.222198] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 42.222229] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 42.222259] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 42.222290] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 42.222290] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 42.222320] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 42.222351] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 42.222381] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 42.222381] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 42.222412] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 42.222412] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 42.222442] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 42.222442] ---[ end trace 0082e61f4305834f ]--- [ 42.229370] PM: early resume of devices complete after 5.767 msecs [ 42.598297] PM: resume of devices complete after 368.804 msecs [ 42.775451] PM: Finishing wakeup. [ 42.777252] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1438,INA:0,ON:1439,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:1438,INA:0,ON:1439,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:897,INA:541,ON:1439,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:897,INA:541,ON:1439,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:1648,INA:0,ON:1649,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:25,INA:3,ON:29,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:28,INA:0,ON:29,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1648,INA:0,ON:1649,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:1102,INA:546,ON:1649,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1102,INA:546,ON:1649,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 [ 63.227874] omap3_pm_off_mode_enable: Core OFF disabled due to errata i583 root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 64.239624] PM: Syncing filesystems ... done. [ 65.065460] PM: Preparing system for mem sleep [ 65.070220] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 65.076385] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 65.082733] PM: Entering mem sleep [ 65.084594] Suspending console(s) (use no_console_suspend to debug) [ 65.112548] PM: suspend of devices complete after 17.364 msecs [ 65.122528] PM: late suspend of devices complete after 9.948 msecs [ 65.132690] PM: noirq suspend of devices complete after 10.101 msecs [ 65.132720] Disabling non-boot CPUs ... [ 65.132720] Successfully put all powerdomains to target state [ 65.138977] PM: noirq resume of devices complete after 6.195 msecs [ 65.139160] In-band Error seen by MPU at address 0 [ 65.139160] ------------[ cut here ]------------ [ 65.139190] WARNING: CPU: 0 PID: 1559 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.139221] Modules linked in: [ 65.139221] CPU: 0 PID: 1559 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 65.139221] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 65.139282] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.139312] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.139312] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.139343] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.139343] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.139373] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.139404] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.139404] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.139434] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.139434] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.139465] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.139495] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.139495] Exception stack(0xdd02ddd0 to 0xdd02de18) [ 65.139495] ddc0: 00000001 de7b7a68 00000000 de7b7480 [ 65.139526] dde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.139526] de00: c0abe238 dd02de18 c008371c c05db594 20000153 ffffffff [ 65.139556] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.139587] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.139617] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.139648] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.139648] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.139678] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.139709] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.139709] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.139739] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.139770] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.139770] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.139801] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.139801] ---[ end trace 0082e61f43058350 ]--- [ 65.147979] PM: early resume of devices complete after 6.713 msecs [ 65.518188] PM: resume of devices complete after 370.086 msecs [ 65.695495] PM: Finishing wakeup. [ 65.697296] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:55,RET:1749,INA:0,ON:1805,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:1,RET:28,INA:0,ON:30,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:55,RET:1749,INA:0,ON:1805,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:1252,INA:551,ON:1805,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1252,INA:551,ON:1805,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 [ 68.343109] PM: Syncing filesystems ... done. [ 69.591918] PM: Preparing system for mem sleep [ 69.596679] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 69.602844] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 69.609069] PM: Entering mem sleep [ 69.610931] Suspending console(s) (use no_console_suspend to debug) [ 69.638916] PM: suspend of devices complete after 17.425 msecs [ 69.648986] PM: late suspend of devices complete after 10.009 msecs [ 69.659149] PM: noirq suspend of devices complete after 10.131 msecs [ 69.659149] Disabling non-boot CPUs ... [ 69.659179] Successfully put all powerdomains to target state [ 69.665405] PM: noirq resume of devices complete after 6.134 msecs [ 69.665557] In-band Error seen by MPU at address 0 [ 69.665557] ------------[ cut here ]------------ [ 69.665588] WARNING: CPU: 0 PID: 1561 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 69.665618] Modules linked in: [ 69.665618] CPU: 0 PID: 1561 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 69.665649] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 69.665679] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 69.665710] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 69.665740] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 69.665740] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 69.665771] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 69.665802] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 69.665802] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 69.665832] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 69.665832] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 69.665863] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 69.665863] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 69.665893] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 69.665893] Exception stack(0xdd02ddd0 to 0xdd02de18) [ 69.665924] ddc0: 00000001 de7b7a68 00000000 de7b7480 [ 69.665924] dde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 69.665954] de00: c0abe238 dd02de18 c008371c c05db594 20000153 ffffffff [ 69.665954] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 69.665985] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 69.666015] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 69.666046] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 69.666076] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 69.666076] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 69.666107] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 69.666137] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 69.666168] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 69.666168] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 69.666198] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 69.666198] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 69.666229] ---[ end trace 0082e61f43058351 ]--- [ 69.674163] PM: early resume of devices complete after 6.683 msecs [ 70.048309] PM: resume of devices complete after 373.992 msecs [ 70.225738] PM: Finishing wakeup. [ 70.227539] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:173,RET:1749,INA:0,ON:1923,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:2,RET:28,INA:0,ON:31,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:173,RET:1749,INA:0,ON:1923,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:1364,INA:556,ON:1923,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1364,INA:556,ON:1923,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:371,RET:1749,INA:0,ON:2121,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:56,INA:4,ON:61,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:31,RET:29,INA:0,ON:61,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:371,RET:1749,INA:0,ON:2121,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:32,RET:1527,INA:561,ON:2121,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:32,RET:1527,INA:561,ON:2121,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