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[ 33.675079] random: nonblocking pool is initialized _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:~# 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:1106,INA:0,ON:1107,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:1106,INA:0,ON:1107,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:562,INA:544,ON:1107,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:562,INA:544,ON:1107,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 [ 38.121765] PM: Syncing filesystems ... done. [ 38.526947] Freezing user space processes ... (elapsed 0.003 seconds) done. [ 38.534515] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 38.542480] Suspending console(s) (use no_console_suspend to debug) [ 38.585906] PM: suspend of devices complete after 31.433 msecs [ 38.596832] PM: late suspend of devices complete after 10.894 msecs [ 38.608764] PM: noirq suspend of devices complete after 11.871 msecs [ 38.608917] Disabling non-boot CPUs ... [ 38.608978] Successfully put all powerdomains to target state [ 38.615631] PM: noirq resume of devices complete after 6.561 msecs [ 38.615875] In-band Error seen by MPU at address 0 [ 38.615875] ------------[ cut here ]------------ [ 38.615905] WARNING: CPU: 0 PID: 1488 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 38.615936] Modules linked in: [ 38.615966] CPU: 0 PID: 1488 Comm: echo Not tainted 3.19.0-rc2-14206-gb7392d2 #1 [ 38.615966] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 38.616027] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 38.616058] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 38.616088] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 38.616088] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 38.616119] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 38.616149] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 38.616180] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 38.616210] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 38.616210] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 38.616241] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 38.616271] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 38.616302] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 38.616302] Exception stack(0xce5afdd0 to 0xce5afe18) [ 38.616333] fdc0: 00000001 cd0573e8 00000000 cd056e00 [ 38.616333] fde0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 38.616363] fe00: c0abe898 ce5afe18 c008371c c05db594 20000013 ffffffff [ 38.616394] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 38.616394] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 38.616455] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 38.616485] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 38.616516] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 38.616546] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 38.616577] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 38.616607] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 38.616607] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 38.616638] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 38.616668] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 38.616699] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 38.616699] ---[ end trace 2b972af644672269 ]--- [ 38.625183] PM: early resume of devices complete after 7.080 msecs [ 38.780944] PM: resume of devices complete after 155.578 msecs [ 38.960479] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1251,INA:0,ON:1252,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:1251,INA:0,ON:1252,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:684,INA:567,ON:1252,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:684,INA:567,ON:1252,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 [ 40.828002] PM: Syncing filesystems ... done. [ 41.171356] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 41.178161] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 41.184692] Suspending console(s) (use no_console_suspend to debug) [ 41.215332] PM: suspend of devices complete after 19.073 msecs [ 41.226135] PM: late suspend of devices complete after 10.742 msecs [ 41.237182] PM: noirq suspend of devices complete after 11.047 msecs [ 41.237213] Disabling non-boot CPUs ... [ 41.237243] Successfully put all powerdomains to target state [ 41.243621] PM: noirq resume of devices complete after 6.317 msecs [ 41.243804] In-band Error seen by MPU at address 0 [ 41.243835] ------------[ cut here ]------------ [ 41.243865] WARNING: CPU: 0 PID: 1492 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 41.243865] Modules linked in: [ 41.243896] CPU: 0 PID: 1492 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 41.243896] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 41.243957] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 41.243988] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 41.244018] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 41.244049] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 41.244079] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 41.244110] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 41.244110] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 41.244140] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 41.244171] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 41.244201] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 41.244201] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 41.244232] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 41.244262] Exception stack(0xce5afdd0 to 0xce5afe18) [ 41.244262] fdc0: 00000001 cd0573e8 00000000 cd056e00 [ 41.244293] fde0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 41.244293] fe00: c0abe898 ce5afe18 c008371c c05db594 20000013 ffffffff [ 41.244323] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 41.244354] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 41.244384] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 41.244445] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 41.244476] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 41.244476] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 41.244506] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 41.244537] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 41.244567] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 41.244598] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 41.244628] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 41.244659] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 41.244659] ---[ end trace 2b972af64467226a ]--- [ 41.253143] PM: early resume of devices complete after 7.202 msecs [ 41.409851] PM: resume of devices complete after 156.555 msecs [ 41.588867] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1361,INA:0,ON:1362,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:1361,INA:0,ON:1362,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:786,INA:575,ON:1362,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:786,INA:575,ON:1362,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:1576,INA:0,ON:1577,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:1576,INA:0,ON:1577,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:989,INA:587,ON:1577,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:989,INA:587,ON:1577,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 [ 62.252777] PM: Syncing filesystems ... done. [ 62.598236] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 62.604370] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 62.610992] Suspending console(s) (use no_console_suspend to debug) [ 62.641632] PM: suspend of devices complete after 19.042 msecs [ 62.652343] PM: late suspend of devices complete after 10.681 msecs [ 62.663269] PM: noirq suspend of devices complete after 10.894 msecs [ 62.663299] Disabling non-boot CPUs ... [ 62.663330] Successfully put all powerdomains to target state [ 62.684417] PM: noirq resume of devices complete after 20.965 msecs [ 62.684570] In-band Error seen by MPU at address 0 [ 62.684600] ------------[ cut here ]------------ [ 62.684631] WARNING: CPU: 0 PID: 1529 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 62.684631] Modules linked in: [ 62.684661] CPU: 0 PID: 1529 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 62.684661] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 62.684722] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 62.684753] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 62.684783] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 62.684814] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 62.684844] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 62.684875] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 62.684875] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 62.684906] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 62.684936] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 62.684967] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 62.684967] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 62.684997] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 62.685028] Exception stack(0xce581dd0 to 0xce581e18) [ 62.685028] 1dc0: 00000001 ce5e37a8 00000000 ce5e31c0 [ 62.685058] 1de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 62.685058] 1e00: c0abe898 ce581e18 c008371c c05db594 20000153 ffffffff [ 62.685089] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 62.685119] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 62.685150] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 62.685211] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 62.685241] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 62.685241] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 62.685272] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 62.685302] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 62.685333] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 62.685363] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 62.685394] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 62.685424] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 62.685424] ---[ end trace 2b972af64467226b ]--- [ 62.693908] PM: early resume of devices complete after 7.080 msecs [ 62.849334] PM: resume of devices complete after 155.273 msecs [ 63.028259] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:61,RET:1688,INA:0,ON:1750,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:28,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:61,RET:1688,INA:0,ON:1750,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:1146,INA:602,ON:1750,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1146,INA:602,ON:1750,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 [ 64.880187] PM: Syncing filesystems ... done. [ 65.076324] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 65.082458] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 65.089019] Suspending console(s) (use no_console_suspend to debug) [ 65.119750] PM: suspend of devices complete after 19.073 msecs [ 65.130523] PM: late suspend of devices complete after 10.742 msecs [ 65.141479] PM: noirq suspend of devices complete after 10.925 msecs [ 65.141479] Disabling non-boot CPUs ... [ 65.141510] Successfully put all powerdomains to target state [ 65.162597] PM: noirq resume of devices complete after 20.996 msecs [ 65.162750] In-band Error seen by MPU at address 0 [ 65.162780] ------------[ cut here ]------------ [ 65.162811] WARNING: CPU: 0 PID: 1531 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.162841] Modules linked in: [ 65.162841] CPU: 0 PID: 1531 Comm: echo Tainted: G W 3.19.0-rc2-14206-gb7392d2 #1 [ 65.162872] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 65.162902] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.162963] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.162994] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.162994] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.163024] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.163055] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.163085] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.163085] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.163116] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.163146] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.163177] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.163177] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.163208] Exception stack(0xce5dddd0 to 0xce5dde18) [ 65.163208] ddc0: 00000001 ce5e37a8 00000000 ce5e31c0 [ 65.163238] dde0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.163269] de00: c0abe898 ce5dde18 c008371c c05db594 20000153 ffffffff [ 65.163299] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.163299] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.163360] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.163391] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.163421] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.163421] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.163482] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.163513] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.163513] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.163543] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.163574] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.163604] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.163604] ---[ end trace 2b972af64467226c ]--- [ 65.172088] PM: early resume of devices complete after 7.202 msecs [ 65.329528] PM: resume of devices complete after 157.287 msecs [ 65.508514] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:172,RET:1688,INA:0,ON:1861,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:28,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:172,RET:1688,INA:0,ON:1861,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:1240,INA:618,ON:1861,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1240,INA:618,ON:1861,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:377,RET:1688,INA:0,ON:2066,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:27,RET:29,INA:3,ON:60,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:28,RET:31,INA:0,ON:60,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:377,RET:1688,INA:0,ON:2066,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:28,RET:1410,INA:627,ON:2066,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:28,RET:1410,INA:627,ON:2066,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