Hi, I run basically the same tests as intrigeri did with linux-image 2.6.39-2-686-pae (installed in a squeeze system).
single user mode with KMS ========================= 1) boot in single user mode (see [1] for result of `ps aux`) 2) remove unused modules (see [2] for reslut of `lsmod`) 3) `echo freezer > /sys/power/pm_test` ; `echo disk > /sys/power/state` the freeze successes (stuff happens then bash comes back) 4) `echo devices > /sys/power/pm_test` ; `echo disk > /sys/power/state` the screen remains black, power and battery LEDs on, kernel doesn't answer to sysrq single user mode without KMS ============================ 1) boot in single user mode with `radeon.modeset=0` on kernel command line (see [3] for result of `ps aux`) 2) remove unused modules (see [4] for reslut of `lsmod`) 3) `echo freezer > /sys/power/pm_test` ; `echo disk > /sys/power/state` the freeze successes 4) `echo devices > /sys/power/pm_test` ; `echo disk > /sys/power/state` seems to succeed (stuff happens then bash comes back) single user mode with KMS, noapic, nolapic ========================================== Same test with `noapic nolapic` on kernel command line; Same result as "single user mode with KMS" single user mode with KMS, acpi=off =================================== Same test with `acpi=off` on kernel command line; The system doesn't boot, so I can't test Hope it helps, feel free to ask for more tests, K. Notes ===== [1]. Result of ps aux, KMS enabled: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 1.3 0.0 2080 608 ? Ss 11:20 0:00 init [S] root 2 0.0 0.0 0 0 ? S 11:20 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S 11:20 0:00 [ksoftirqd/0] root 4 0.0 0.0 0 0 ? S 11:20 0:00 [kworker/0:0] root 5 0.0 0.0 0 0 ? S 11:20 0:00 [kworker/u:0] root 6 0.0 0.0 0 0 ? S 11:20 0:00 [migration/0] root 7 0.0 0.0 0 0 ? S 11:20 0:00 [watchdog/0] root 8 0.0 0.0 0 0 ? S< 11:20 0:00 [cpuset] root 9 0.0 0.0 0 0 ? S< 11:20 0:00 [khelper] root 10 0.0 0.0 0 0 ? S< 11:20 0:00 [netns] root 11 0.0 0.0 0 0 ? S 11:20 0:00 [sync_supers] root 12 0.0 0.0 0 0 ? S 11:20 0:00 [bdi-default] root 13 0.0 0.0 0 0 ? S< 11:20 0:00 [kintegrityd] root 14 0.0 0.0 0 0 ? S< 11:20 0:00 [kblockd] root 15 0.5 0.0 0 0 ? S 11:20 0:00 [kworker/0:1] root 16 0.0 0.0 0 0 ? S 11:20 0:00 [khungtaskd] root 17 0.0 0.0 0 0 ? S 11:20 0:00 [kswapd0] root 18 0.0 0.0 0 0 ? SN 11:20 0:00 [ksmd] root 19 0.0 0.0 0 0 ? SN 11:20 0:00 [khugepaged] root 20 0.0 0.0 0 0 ? S 11:20 0:00 [fsnotify_mark] root 21 0.0 0.0 0 0 ? S< 11:20 0:00 [crypto] root 24 0.0 0.0 0 0 ? S 11:20 0:00 [kworker/0:2] root 165 0.0 0.0 0 0 ? S 11:20 0:00 [khubd] root 166 0.0 0.0 0 0 ? S< 11:20 0:00 [ata_sff] root 169 0.0 0.0 0 0 ? S 11:20 0:00 [scsi_eh_0] root 170 0.0 0.0 0 0 ? S 11:20 0:00 [scsi_eh_1] root 172 0.0 0.0 0 0 ? S 11:20 0:00 [kworker/u:1] root 173 0.0 0.0 0 0 ? S 11:20 0:00 [kworker/u:2] root 256 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 257 0.0 0.0 0 0 ? S< 11:20 0:00 [kcryptd_io] root 258 0.0 0.0 0 0 ? S< 11:20 0:00 [kcryptd] root 265 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 270 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 275 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 280 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 285 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 290 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 295 0.0 0.0 0 0 ? S< 11:20 0:00 [kdmflush] root 311 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-1-8] root 312 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] root 368 0.1 0.1 2588 1096 ? S<s 11:20 0:00 udevd --daemon root 514 0.7 0.0 0 0 ? S 11:20 0:00 [kworker/0:3] root 628 0.0 0.0 0 0 ? S< 11:20 0:00 [ttm_swap] root 929 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-3-8] root 930 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] root 931 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-4-8] root 932 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] root 933 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-7-8] root 934 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] root 935 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-5-8] root 936 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] root 937 0.0 0.0 0 0 ? S 11:20 0:00 [jbd2/dm-6-8] root 938 0.0 0.0 0 0 ? S< 11:20 0:00 [ext4-dio-unwrit] daemon 1226 0.0 0.0 1856 492 ? Ss 11:20 0:00 /sbin/portmap -i 127.0.0.1 statd 1256 0.0 0.0 1984 768 ? Ss 11:20 0:00 /sbin/rpc.statd root 1392 0.0 0.0 2080 88 tty4 Ss 11:20 0:00 init [S] root 1393 0.3 0.1 3088 1648 tty4 S 11:20 0:00 bash root 1394 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:1] root 1395 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:3] root 1396 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:4] root 1397 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:5] root 1398 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:6] root 1399 0.0 0.0 0 0 ? S 11:20 0:00 [flush-254:7] root 1413 0.0 0.0 2584 956 ? S< 11:21 0:00 udevd --daemon root 1414 0.0 0.0 2584 980 ? S< 11:21 0:00 udevd --daemon root 1450 0.0 0.0 2400 924 tty4 R+ 11:21 0:00 ps aux [2]. Result of lsmod, KMS enabled: Module Size Used by fuse 55666 1 radeon 712176 1 ttm 46736 1 radeon drm_kms_helper 26550 1 radeon drm 129190 3 radeon,ttm,drm_kms_helper i2c_algo_bit 12706 1 radeon power_supply 13283 1 radeon i2c_core 19022 4 radeon,drm_kms_helper,drm,i2c_algo_bit processor 26983 1 ext4 270998 6 mbcache 12810 1 ext4 jbd2 55701 1 ext4 crc16 12327 1 ext4 sha256_generic 16709 2 aes_i586 16608 2 aes_generic 37066 1 aes_i586 cbc 12659 1 dm_crypt 17809 1 dm_mod 56401 26 dm_crypt sd_mod 35060 2 crc_t10dif 12332 1 sd_mod ata_piix 21079 1 libata 132100 1 ata_piix usbcore 99225 1 scsi_mod 134453 2 sd_mod,libata thermal_sys 17667 1 processor [3]. result of `ps aux`, KMS disabled USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.5 0.0 2080 608 ? Ss 11:12 0:01 init [S] root 2 0.0 0.0 0 0 ? S 11:12 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S 11:12 0:00 [ksoftirqd/0] root 4 0.1 0.0 0 0 ? S 11:12 0:00 [kworker/0:0] root 5 0.0 0.0 0 0 ? S 11:12 0:00 [kworker/u:0] root 6 0.0 0.0 0 0 ? S 11:12 0:00 [migration/0] root 7 2.0 0.0 0 0 ? S 11:12 0:04 [watchdog/0] root 8 0.0 0.0 0 0 ? S< 11:12 0:00 [cpuset] root 9 0.0 0.0 0 0 ? S< 11:12 0:00 [khelper] root 10 0.0 0.0 0 0 ? S< 11:12 0:00 [netns] root 11 0.0 0.0 0 0 ? S 11:12 0:00 [sync_supers] root 12 0.0 0.0 0 0 ? S 11:12 0:00 [bdi-default] root 13 0.0 0.0 0 0 ? S< 11:12 0:00 [kintegrityd] root 14 0.0 0.0 0 0 ? S< 11:12 0:00 [kblockd] root 15 0.5 0.0 0 0 ? S 11:12 0:01 [kworker/0:1] root 16 0.0 0.0 0 0 ? S 11:12 0:00 [khungtaskd] root 17 0.0 0.0 0 0 ? S 11:12 0:00 [kswapd0] root 18 0.0 0.0 0 0 ? SN 11:12 0:00 [ksmd] root 19 0.0 0.0 0 0 ? SN 11:12 0:00 [khugepaged] root 20 0.0 0.0 0 0 ? S 11:12 0:00 [fsnotify_mark] root 21 0.0 0.0 0 0 ? S< 11:12 0:00 [crypto] root 24 0.0 0.0 0 0 ? S 11:12 0:00 [kworker/0:2] root 159 0.0 0.0 0 0 ? S 11:12 0:00 [khubd] root 160 0.0 0.0 0 0 ? S< 11:13 0:00 [ata_sff] root 161 0.0 0.0 0 0 ? S 11:13 0:00 [scsi_eh_0] root 162 0.0 0.0 0 0 ? S 11:13 0:00 [scsi_eh_1] root 163 0.0 0.0 0 0 ? S 11:13 0:00 [kworker/u:1] root 164 0.0 0.0 0 0 ? S 11:13 0:00 [kworker/u:2] root 250 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 251 0.0 0.0 0 0 ? S< 11:14 0:00 [kcryptd_io] root 252 0.0 0.0 0 0 ? S< 11:14 0:00 [kcryptd] root 259 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 264 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 269 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 274 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 279 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 284 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 289 0.0 0.0 0 0 ? S< 11:14 0:00 [kdmflush] root 305 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-1-8] root 306 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] root 362 0.1 0.1 2588 1096 ? S<s 11:15 0:00 udevd --daemon root 530 0.0 0.0 0 0 ? S 11:15 0:00 [kworker/0:3] root 555 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:1] root 884 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-3-8] root 885 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] root 886 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-4-8] root 887 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] root 888 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-7-8] root 889 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] root 890 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-5-8] root 891 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] root 892 0.0 0.0 0 0 ? S 11:15 0:00 [jbd2/dm-6-8] root 893 0.0 0.0 0 0 ? S< 11:15 0:00 [ext4-dio-unwrit] daemon 1170 0.0 0.0 1856 492 ? Ss 11:15 0:00 /sbin/portmap -i 127.0.0.1 statd 1182 0.0 0.0 1984 768 ? Ss 11:15 0:00 /sbin/rpc.statd root 1347 0.0 0.0 2080 88 tty6 Ss 11:15 0:00 init [S] root 1348 0.5 0.1 3096 1720 tty6 S 11:15 0:00 bash root 1349 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:3] root 1350 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:4] root 1351 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:5] root 1352 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:6] root 1353 0.0 0.0 0 0 ? S 11:15 0:00 [flush-254:7] root 1367 0.0 0.0 2584 956 ? S< 11:16 0:00 udevd --daemon root 1369 0.0 0.0 2584 956 ? S< 11:16 0:00 udevd --daemon root 1407 0.0 0.0 2400 932 tty6 R+ 11:16 0:00 ps aux [4]. result of lsmod, KMS disabled: Module Size Used by fuse 55666 1 processor 26983 1 ext4 270998 6 mbcache 12810 1 ext4 jbd2 55701 1 ext4 crc16 12327 1 ext4 sha256_generic 16709 2 aes_i586 16608 2 aes_generic 37066 1 aes_i586 cbc 12659 1 dm_crypt 17809 1 dm_mod 56401 26 dm_crypt sd_mod 35060 2 crc_t10dif 12332 1 sd_mod ata_piix 21079 1 libata 132100 1 ata_piix scsi_mod 134453 2 sd_mod,libata usbcore 99225 1 thermal_sys 17667 1 processor -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110621095030.ga3...@a4nancy.net.eu.org
