怘€æ€˜€`3f<€fÀæøÀ̆ž?`??f?æžf<øž`??ð3ž<3ž<` $u/power/autosuspend_delay_ms; done root@beagleboard:~# root@beagleboard:~# for u in `ls -1d /sys/bus/platform/drivers/omap_uart/*.seria l | paste -s -d' '`; do ls -l $u/power/autosuspend_delay_ms; cat $u/power/autos uspend_delay_ms; done -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806a000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/4806c000.serial/power/autosuspend_delay_ms -1 -rw-r--r-- 1 root root 4096 Jul 22 00:18 /sys/bus/platform/drivers/omap_uart/49020000.serial/power/autosuspend_delay_ms -1 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:1056,INA:0,ON:1057,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:1056,INA:0,ON:1057,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:589,INA:467,ON:1057,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:589,INA:467,ON:1057,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 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/ttyO2/power/wakeup 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 echo mem > /sys/power/state auto -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 [ 39.127502] PM: Syncing filesystems ... done. [ 39.682373] Freezing user space processes ... (elapsed 0.004 seconds) done. [ 39.690734] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. [ 39.698638] Suspending console(s) (use no_console_suspend to debug) [ 39.742004] PM: suspend of devices complete after 31.311 msecs [ 39.753082] PM: late suspend of devices complete after 11.016 msecs [ 39.764984] PM: noirq suspend of devices complete after 11.871 msecs [ 39.765136] Disabling non-boot CPUs ... [ 39.765167] Successfully put all powerdomains to target state [ 39.771820] PM: noirq resume of devices complete after 6.561 msecs [ 39.772033] In-band Error seen by MPU at address 0 [ 39.772064] ------------[ cut here ]------------ [ 39.772094] WARNING: CPU: 0 PID: 1486 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 39.772125] Modules linked in: [ 39.772125] CPU: 0 PID: 1486 Comm: echo Not tainted 3.19.0-rc1-117932-g20e0565 #1 [ 39.772155] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 39.772186] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 39.772247] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 39.772247] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 39.772277] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 39.772308] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 39.772338] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 39.772369] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 39.772369] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 39.772399] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 39.772430] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 39.772430] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 39.772460] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 39.772491] Exception stack(0xce761dd0 to 0xce761e18) [ 39.772491] 1dc0: 00000001 ce524b28 00000000 ce524540 [ 39.772521] 1de0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 39.772521] 1e00: c0abe898 ce761e18 c008374c c05db614 20000013 ffffffff [ 39.772552] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 39.772583] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 39.772613] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 39.772674] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 39.772674] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 39.772705] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 39.772735] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 39.772766] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 39.772796] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 39.772827] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 39.772827] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 39.772857] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 39.772888] ---[ end trace cd8b40d075f9ef36 ]--- [ 39.781463] PM: early resume of devices complete after 7.171 msecs [ 39.955871] PM: resume of devices complete after 174.102 msecs [ 40.136535] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1206,INA:0,ON:1207,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:1206,INA:0,ON:1207,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:733,INA:473,ON:1207,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:733,INA:473,ON:1207,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 [ 42.984863] PM: Syncing filesystems ... done. [ 43.716583] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 43.722717] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 43.729156] Suspending console(s) (use no_console_suspend to debug) [ 43.759887] PM: suspend of devices complete after 19.104 msecs [ 43.770874] PM: late suspend of devices complete after 10.925 msecs [ 43.782165] PM: noirq suspend of devices complete after 11.230 msecs [ 43.782196] Disabling non-boot CPUs ... [ 43.782226] Successfully put all powerdomains to target state [ 43.788604] PM: noirq resume of devices complete after 6.286 msecs [ 43.788787] In-band Error seen by MPU at address 0 [ 43.788787] ------------[ cut here ]------------ [ 43.788818] WARNING: CPU: 0 PID: 1490 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 43.788848] Modules linked in: [ 43.788879] CPU: 0 PID: 1490 Comm: echo Tainted: G W 3.19.0-rc1-117932-g20e0565 #1 [ 43.788879] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 43.788940] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 43.788970] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 43.789001] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 43.789001] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 43.789031] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 43.789062] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 43.789093] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 43.789123] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 43.789123] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 43.789154] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 43.789184] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 43.789184] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 43.789215] Exception stack(0xce761dd0 to 0xce761e18) [ 43.789215] 1dc0: 00000001 ce524b28 00000000 ce524540 [ 43.789245] 1de0: 60000013 ce152860 ce152860 c0921a98 00000000 c0945464 60000013 c09216b0 [ 43.789276] 1e00: c0abe898 ce761e18 c008374c c05db614 20000013 ffffffff [ 43.789276] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 43.789306] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 43.789337] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 43.789398] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 43.789428] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 43.789428] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 43.789459] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 43.789489] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 43.789520] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 43.789550] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 43.789581] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 43.789581] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 43.789611] ---[ end trace cd8b40d075f9ef37 ]--- [ 43.798217] PM: early resume of devices complete after 7.324 msecs [ 43.975219] PM: resume of devices complete after 176.849 msecs [ 44.155334] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:0,RET:1351,INA:0,ON:1352,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:1351,INA:0,ON:1352,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:868,INA:483,ON:1352,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:868,INA:483,ON:1352,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:1643,INA:0,ON:1644,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:34,INA:6,ON:41,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:0,RET:41,INA:0,ON:42,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:0,RET:1643,INA:0,ON:1644,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:1155,INA:488,ON:1644,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:0,RET:1155,INA:488,ON:1644,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 [ 64.805419] PM: Syncing filesystems ... done. [ 65.192321] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 65.198394] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 65.204833] Suspending console(s) (use no_console_suspend to debug) [ 65.235595] PM: suspend of devices complete after 19.042 msecs [ 65.246459] PM: late suspend of devices complete after 10.803 msecs [ 65.257629] PM: noirq suspend of devices complete after 11.138 msecs [ 65.257629] Disabling non-boot CPUs ... [ 65.257659] Successfully put all powerdomains to target state [ 65.277893] PM: noirq resume of devices complete after 20.111 msecs [ 65.278076] In-band Error seen by MPU at address 0 [ 65.278076] ------------[ cut here ]------------ [ 65.278106] WARNING: CPU: 0 PID: 1527 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 65.278137] Modules linked in: [ 65.278167] CPU: 0 PID: 1527 Comm: echo Tainted: G W 3.19.0-rc1-117932-g20e0565 #1 [ 65.278167] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 65.278228] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 65.278259] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 65.278289] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 65.278289] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 65.278320] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 65.278350] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 65.278381] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 65.278411] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 65.278411] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 65.278442] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 65.278472] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 65.278472] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 65.278503] Exception stack(0xce6a7dd0 to 0xce6a7e18) [ 65.278503] 7dc0: 00000001 cd005268 00000000 cd004c80 [ 65.278533] 7de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 65.278564] 7e00: c0abe898 ce6a7e18 c008374c c05db614 20000153 ffffffff [ 65.278594] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 65.278594] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 65.278656] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 65.278686] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 65.278717] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 65.278717] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 65.278747] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 65.278778] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 65.278808] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 65.278839] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 65.278869] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 65.278900] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 65.278900] ---[ end trace cd8b40d075f9ef38 ]--- [ 65.287536] PM: early resume of devices complete after 7.354 msecs [ 65.464996] PM: resume of devices complete after 177.307 msecs [ 65.645050] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:70,RET:1766,INA:0,ON:1837,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:34,INA:6,ON:42,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:1,RET:41,INA:0,ON:43,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:70,RET:1766,INA:0,ON:1837,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:1332,INA:503,ON:1837,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:1,RET:1332,INA:503,ON:1837,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 [ 68.474761] PM: Syncing filesystems ... done. [ 69.203491] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 69.209533] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 69.216064] Suspending console(s) (use no_console_suspend to debug) [ 69.246795] PM: suspend of devices complete after 19.012 msecs [ 69.257720] PM: late suspend of devices complete after 10.864 msecs [ 69.268890] PM: noirq suspend of devices complete after 11.108 msecs [ 69.268890] Disabling non-boot CPUs ... [ 69.268920] Successfully put all powerdomains to target state [ 69.289154] PM: noirq resume of devices complete after 20.141 msecs [ 69.289337] In-band Error seen by MPU at address 0 [ 69.289337] ------------[ cut here ]------------ [ 69.289367] WARNING: CPU: 0 PID: 1529 at drivers/bus/omap_l3_smx.c:166 omap3_l3_app_irq+0xcc/0x124() [ 69.289398] Modules linked in: [ 69.289428] CPU: 0 PID: 1529 Comm: echo Tainted: G W 3.19.0-rc1-117932-g20e0565 #1 [ 69.289428] Hardware name: Generic OMAP3-GP (Flattened Device Tree) [ 69.289489] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 69.289520] [] (show_stack) from [] (dump_stack+0x80/0x9c) [ 69.289550] [] (dump_stack) from [] (warn_slowpath_common+0x78/0xb4) [ 69.289550] [] (warn_slowpath_common) from [] (warn_slowpath_null+0x1c/0x24) [ 69.289581] [] (warn_slowpath_null) from [] (omap3_l3_app_irq+0xcc/0x124) [ 69.289611] [] (omap3_l3_app_irq) from [] (handle_irq_event_percpu+0x60/0x1f4) [ 69.289642] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x3c/0x5c) [ 69.289672] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x13c) [ 69.289672] [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x30) [ 69.289703] [] (generic_handle_irq) from [] (__handle_domain_irq+0x68/0xdc) [ 69.289733] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0xb4/0xc4) [ 69.289733] [] (omap_intc_handle_irq) from [] (__irq_svc+0x44/0x5c) [ 69.289764] Exception stack(0xce6a7dd0 to 0xce6a7e18) [ 69.289764] 7dc0: 00000001 cd005268 00000000 cd004c80 [ 69.289794] 7de0: 60000153 ce152860 ce152860 c0921a98 00000000 c0945464 60000153 c09216b0 [ 69.289825] 7e00: c0abe898 ce6a7e18 c008374c c05db614 20000153 ffffffff [ 69.289855] [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [ 69.289855] [] (_raw_spin_unlock_irqrestore) from [] (resume_irqs+0x84/0xdc) [ 69.289916] [] (resume_irqs) from [] (dpm_resume_noirq+0x210/0x2d4) [ 69.289947] [] (dpm_resume_noirq) from [] (suspend_devices_and_enter+0x324/0x600) [ 69.289978] [] (suspend_devices_and_enter) from [] (pm_suspend+0x3fc/0x470) [ 69.289978] [] (pm_suspend) from [] (state_store+0x68/0xb8) [ 69.290008] [] (state_store) from [] (kobj_attr_store+0x14/0x20) [ 69.290039] [] (kobj_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 69.290069] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xf0/0x19c) [ 69.290100] [] (kernfs_fop_write) from [] (vfs_write+0xa4/0x1ac) [ 69.290130] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 69.290161] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 69.290161] ---[ end trace cd8b40d075f9ef39 ]--- [ 69.298767] PM: early resume of devices complete after 7.293 msecs [ 69.454864] PM: resume of devices complete after 155.944 msecs [ 69.634918] Restarting tasks ... done. root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:219,RET:1766,INA:0,ON:1986,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:34,INA:6,ON:43,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:2,RET:41,INA:0,ON:44,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:219,RET:1766,INA:0,ON:1986,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:1467,INA:516,ON:1986,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:2,RET:1467,INA:516,ON:1986,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 00:19 /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 root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# root@beagleboard:~# cat /debug/pm_debug/count usbhost_pwrdm (ON),OFF:506,RET:1766,INA:0,ON:2273,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:26,RET:36,INA:9,ON:72,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0,RET-MEMBANK2-OFF:0 per_pwrdm (ON),OFF:28,RET:44,INA:0,ON:73,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 dss_pwrdm (ON),OFF:506,RET:1766,INA:0,ON:2273,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:29,RET:1709,INA:534,ON:2273,RET-LOGIC-OFF:0 mpu_pwrdm (ON),OFF:29,RET:1709,INA:534,ON:2273,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