怘€æ€˜€`3f<€fÀæøÀ̆ž?`??f?æžf<øž`??ð3ž<3ž<` $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls[ 31.811523] random: nonblocking pool is initialized -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:~# 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:1163,INA:0,ON:1164,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:1163,INA:0,ON:1164,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:621,INA:542,ON:1164,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:621,INA:542,ON:1164,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 enabled for u in `ls -1d /sys/class/tty/ttyO* | paste -s -d' '`; do ls -l $u/power/control; cat $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/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 [ 36.234710] PM: Syncing filesystems ... done. [ 37.463348] PM: Preparing system for mem sleep [ 37.486938] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 37.493865] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 37.501068] PM: Entering mem sleep [ 37.502929] Suspending console(s) (use no_console_suspend to debug) [ 37.535430] PM: suspend of devices complete after 22.216 msecs [ 37.544158] PM: late suspend of devices complete after 8.697 msecs [ 37.553558] PM: noirq suspend of devices complete after 9.338 msecs [ 37.553680] Disabling non-boot CPUs ... [ 37.553833] Successfully put all powerdomains to target state [ 37.559265] PM: noirq resume of devices complete after 5.340 msecs [ 37.559448] In-band Error seen by MPU at address 0 [ 37.559478] ------------[ cut here ]------------ [ 37.559509] WARNING: CPU: 0 PID: 1500 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 37.559509] Modules linked in: [ 37.559539] CPU: 0 PID: 1500 Comm: echo Not tainted 3.19.0-rc1-14140-g97bf6af #1 [ 37.559539] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 37.559570] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 37.559600] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 37.559631] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 37.559661] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 37.559661] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 37.559692] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 37.559692] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 37.559722] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 37.559722] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 37.559753] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 37.559783] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 37.559783] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 37.559783] Exception stack(0xdd133dd0 to 0xdd133e18) [ 37.559814] 3dc0: 00000001 de53d5e8 00000000 de53d000 [ 37.559814] 3de0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 37.559844] 3e00: c0abe238 dd133e18 c008371c c05db5f4 20000013 ffffffff [ 37.559844] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 37.559875] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 37.559906] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 37.559936] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 37.559967] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 37.559967] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 37.559997] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 37.560028] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 37.560028] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 37.560058] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 37.560089] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 37.560089] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 37.560089] ---[ end trace 473538a83b59ae96 ]--- [ 37.567047] PM: early resume of devices complete after 5.859 msecs [ 37.959991] PM: resume of devices complete after 392.822 msecs [ 38.136627] PM: Finishing wakeup. [ 38.138427] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1299,INA:0,ON:1300,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:1299,INA:0,ON:1300,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:748,INA:551,ON:1300,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:748,INA:551,ON:1300,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 [ 40.766632] PM: Syncing filesystems ... done. [ 42.021545] PM: Preparing system for mem sleep [ 42.026275] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 42.032196] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 42.038482] PM: Entering mem sleep [ 42.040313] Suspending console(s) (use no_console_suspend to debug) [ 42.066284] PM: suspend of devices complete after 15.899 msecs [ 42.075042] PM: late suspend of devices complete after 8.697 msecs [ 42.083923] PM: noirq suspend of devices complete after 8.850 msecs [ 42.083953] Disabling non-boot CPUs ... [ 42.083953] Successfully put all powerdomains to target state [ 42.089172] PM: noirq resume of devices complete after 5.126 msecs [ 42.089294] In-band Error seen by MPU at address 0 [ 42.089324] ------------[ cut here ]------------ [ 42.089355] WARNING: CPU: 0 PID: 1504 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 42.089355] Modules linked in: [ 42.089385] CPU: 0 PID: 1504 Comm: echo Tainted: G W 3.19.0-rc1-14140-g97bf6af #1 [ 42.089385] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 42.089447] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 42.089477] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 42.089477] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 42.089508] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 42.089508] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 42.089538] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 42.089569] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 42.089569] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 42.089599] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 42.089599] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 42.089630] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 42.089630] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 42.089660] Exception stack(0xdd133dd0 to 0xdd133e18) [ 42.089660] 3dc0: 00000001 de53d5e8 00000000 de53d000 [ 42.089691] 3de0: 60000013 de153860 de153860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 42.089691] 3e00: c0abe238 dd133e18 c008371c c05db5f4 20000013 ffffffff [ 42.089721] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 42.089752] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 42.089752] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 42.089782] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 42.089813] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 42.089843] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 42.089874] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 42.089874] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 42.089904] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 42.089935] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 42.089935] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 42.089965] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 42.089965] ---[ end trace 473538a83b59ae97 ]--- [ 42.096923] PM: early resume of devices complete after 5.889 msecs [ 42.469085] PM: resume of devices complete after 372.039 msecs [ 42.645629] PM: Finishing wakeup. [ 42.647430] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1418,INA:0,ON:1419,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:1418,INA:0,ON:1419,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:859,INA:559,ON:1419,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:859,INA:559,ON:1419,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:1631,INA:0,ON:1632,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 sgx_pwrdm (OFF),OFF:1,RET:0,INA:0,ON:1,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 core_pwrdm (ON),OFF:0,RET:28,INA:3,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:31,INA:0,ON:32,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1631,INA:0,ON:1632,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:1066,INA:565,ON:1632,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1066,INA:565,ON:1632,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 [ 63.095092] omap3_pm_off_mode_enable: Core OFF disabled due to errata i583 root@beagleboard:~# root@beagleboard:~# echo mem > /sys/power/state [ 64.102447] PM: Syncing filesystems ... done. [ 64.928833] PM: Preparing system for mem sleep [ 64.933685] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 64.939697] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 64.945922] PM: Entering mem sleep [ 64.947784] Suspending console(s) (use no_console_suspend to debug) [ 64.973663] PM: suspend of devices complete after 15.716 msecs [ 64.982238] PM: late suspend of devices complete after 8.575 msecs [ 64.991119] PM: noirq suspend of devices complete after 8.819 msecs [ 64.991119] Disabling non-boot CPUs ... [ 64.991149] Successfully put all powerdomains to target state [ 64.996978] PM: noirq resume of devices complete after 5.737 msecs [ 64.997131] In-band Error seen by MPU at address 0 [ 64.997131] ------------[ cut here ]------------ [ 64.997161] WARNING: CPU: 0 PID: 1546 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 64.997192] Modules linked in: [ 64.997192] CPU: 0 PID: 1546 Comm: echo Tainted: G W 3.19.0-rc1-14140-g97bf6af #1 [ 64.997222] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 64.997253] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 64.997283] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 64.997314] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 64.997314] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 64.997344] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 64.997344] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 64.997375] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 64.997375] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 64.997406] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 64.997406] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 64.997436] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 64.997467] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 64.997467] Exception stack(0xde65bdd0 to 0xde65be18) [ 64.997467] bdc0: 00000001 de57ab68 00000000 de57a580 [ 64.997497] bde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 64.997497] be00: c0abe238 de65be18 c008371c c05db5f4 20000153 ffffffff [ 64.997528] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 64.997558] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 64.997589] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 64.997589] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 64.997619] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 64.997650] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 64.997650] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 64.997680] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 64.997711] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 64.997711] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 64.997741] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 64.997772] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 64.997772] ---[ end trace 473538a83b59ae98 ]--- [ 65.005004] PM: early resume of devices complete after 5.920 msecs [ 65.378906] PM: resume of devices complete after 373.779 msecs [ 65.555389] PM: Finishing wakeup. [ 65.557189] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:53,RET:1736,INA:0,ON:1790,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:29,INA:3,ON:33,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:31,INA:0,ON:33,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:53,RET:1736,INA:0,ON:1790,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:1216,INA:572,ON:1790,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1216,INA:572,ON:1790,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 [ 68.201416] PM: Syncing filesystems ... done. [ 69.446960] PM: Preparing system for mem sleep [ 69.451629] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 69.457733] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 69.464050] PM: Entering mem sleep [ 69.465881] Suspending console(s) (use no_console_suspend to debug) [ 69.491638] PM: suspend of devices complete after 15.594 msecs [ 69.500427] PM: late suspend of devices complete after 8.758 msecs [ 69.509338] PM: noirq suspend of devices complete after 8.880 msecs [ 69.509338] Disabling non-boot CPUs ... [ 69.509368] Successfully put all powerdomains to target state [ 69.515045] PM: noirq resume of devices complete after 5.584 msecs [ 69.515167] In-band Error seen by MPU at address 0 [ 69.515197] ------------[ cut here ]------------ [ 69.515228] WARNING: CPU: 0 PID: 1548 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 69.515228] Modules linked in: [ 69.515258] CPU: 0 PID: 1548 Comm: echo Tainted: G W 3.19.0-rc1-14140-g97bf6af #1 [ 69.515258] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 69.515319] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 69.515350] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 69.515350] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 69.515380] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 69.515380] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 69.515411] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 69.515441] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 69.515441] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 69.515472] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 69.515472] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 69.515502] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 69.515502] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 69.515533] Exception stack(0xde65bdd0 to 0xde65be18) [ 69.515533] bdc0: 00000001 de57ab68 00000000 de57a580 [ 69.515563] bde0: 60000153 de153860 de153860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 69.515563] be00: c0abe238 de65be18 c008371c c05db5f4 20000153 ffffffff [ 69.515594] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 69.515594] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 69.515624] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 69.515655] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 69.515686] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 69.515716] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 69.515716] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 69.515747] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 69.515777] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 69.515777] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 69.515808] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 69.515838] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 69.515838] ---[ end trace 473538a83b59ae99 ]--- [ 69.522705] PM: early resume of devices complete after 5.798 msecs [ 69.898742] PM: resume of devices complete after 375.793 msecs [ 70.075317] PM: Finishing wakeup. [ 70.077117] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:168,RET:1736,INA:0,ON:1905,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:30,INA:3,ON:34,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:2,RET:31,INA:0,ON:34,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:168,RET:1736,INA:0,ON:1905,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:1323,INA:579,ON:1905,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1323,INA:579,ON:1905,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:1736,INA:0,ON:2103,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:57,INA:4,ON:62,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:29,RET:32,INA:0,ON:62,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:366,RET:1736,INA:0,ON:2103,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:1488,INA:584,ON:2103,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:30,RET:1488,INA:584,ON:2103,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