Bug description: After upgrading to UBUNTU 11.10 SciLab hangs trying to plot. I try Xorg-Edgers Driver without any result. I try VirtualBox with Ubuntu 11.04 but plot works normally until installing VirtualBox Guest Additions. After installing Additions the program closes trying to plot. I try VirtualBox with Windows Server 2003 R2 oficial Microsoft trial VHD virtual disk. The plot command works. I try different versions of SciLab including Nightly Build with the same result. But Nightly Build stay UNKILLABLE after plot command. All other programs work normally. Today's system environment: -- chipset: Intel GL960 -- system architecture: 64-bit -- xf86-video-intel: Not found by Synaptic. Found xserver-xorg-video-intel 2:2.16.901+git20111031.59535d0e-0ubuntu0sarvatt; intel-gpu-tools 1.0.2+git20110729+3b10b7b-0ubuntu1~edgers; libcv2.1 and libcvaux2.1 and libhighgui2.1 2.1.0-7build1; libva1 1.0.15-1~xup1; libdrm-intel1 2.4.27+git20111029.cc9b751e-0ubuntu0sarvatt~oneiric -- xserver: 1.11.1.901 (1.11.2 RC 1) -- mesa:7.12.0 -- libdrm:2.4.27+git20111029.cc9b751e-0ubuntu0sarvatt~oneiric -- kernel: Linux Notebook 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:56:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux -- Linux distribution: Ubuntu 11.10 Oneiric Ocelot -- Machine or mobo model: Notebook Acer Extensa 5620Z -- Display connector: Embedded 15.4" WXGA Acer CrystalBright(TM) LCD + D-Sub + S-Video Reproducing steps: 1. Start SciLab 2. Type in SciLab Console: plot([1,2,3],[4,5,6]) The plot window with white background appears. In my bottom panel appears a group "org-scilab-modules-co..." with three elements: "Scilab Console", "Java", "Graphic Window Number 0". And program hangs. To close it I must use kill terminal command. But Nightly Build stay unkillable. Additional info: I write a bug report to scilab.org but they answer that it is a bug of Intel driver. This bug tested everyday after daily automatic update from the time when I receive a notification about new stable release of UBUNTU 11.10 and update a system. Scilab normally plots on UBUNTU 10.04, 11.04.
I've installed both SciLab for oneric and for precise, and they just crash after entering "plot([1,2,3],[4,5,6])". Can you give me the stack traces of the unkillable processes? (Look in /proc/$pid/stack)
/proc/$pid/stack content: [<ffffffffffffffff>] 0xffffffffffffffff
Created attachment 52997 [details] There are stacks of the main SciLab process and childrens I browse the "task" folder of process and compress all stack content of all children. These files are identical: [<ffffffff810953e9>] futex_wait_queue_me+0xc9/0x100 [<ffffffff810963e0>] futex_wait+0x100/0x210 [<ffffffff8109817c>] do_futex+0xbc/0x1d0 [<ffffffff8109839a>] sys_futex+0x10a/0x1a0 [<ffffffff815f22c2>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff Only two files have differences for processes 3251 and 3271. 3251: [<ffffffffffffffff>] 0xffffffffffffffff 3271: [<ffffffff81179f69>] poll_schedule_timeout+0x49/0x70 [<ffffffff8117a4ba>] do_poll.isra.4+0x1ca/0x290 [<ffffffff8117b469>] do_sys_poll+0x1d9/0x260 [<ffffffff8117b5d6>] sys_poll+0x76/0x110 [<ffffffff815f22c2>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff I hope, this information may help
Taken at the time of the unkillable process when it was in the 'D' state?
There are all Processes/Threads. Interesting PID=3251, PPID=3227. States of threads: 3251 - Rl, 3252...3281 - Sl, there is no D-state process on my PC. I don't fill any throttling of my PC when SciLab is in the frozen state. user@Notebook:~$ ps a -eLf UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD root 1 0 1 0 1 11:19 ? Ss 0:00 /sbin/init root 2 0 2 0 1 11:19 ? S 0:00 [kthreadd] root 3 2 3 0 1 11:19 ? S 0:00 [ksoftirqd/0] root 6 2 6 0 1 11:19 ? S 0:00 [migration/0] root 7 2 7 0 1 11:19 ? S 0:00 [migration/1] root 9 2 9 0 1 11:19 ? S 0:00 [ksoftirqd/1] root 11 2 11 0 1 11:19 ? S< 0:00 [cpuset] root 12 2 12 0 1 11:19 ? S< 0:00 [khelper] root 13 2 13 0 1 11:19 ? S< 0:00 [netns] root 14 2 14 0 1 11:19 ? S 0:00 [kworker/u:1] root 15 2 15 0 1 11:19 ? S 0:00 [sync_supers] root 16 2 16 0 1 11:19 ? S 0:00 [bdi-default] root 17 2 17 0 1 11:19 ? S< 0:00 [kintegrityd] root 18 2 18 0 1 11:19 ? S< 0:00 [kblockd] root 19 2 19 0 1 11:19 ? S< 0:00 [ata_sff] root 20 2 20 0 1 11:19 ? S 0:00 [khubd] root 21 2 21 0 1 11:19 ? S< 0:00 [md] root 23 2 23 0 1 11:19 ? S 0:00 [khungtaskd] root 24 2 24 0 1 11:19 ? S 0:07 [kswapd0] root 25 2 25 0 1 11:19 ? SN 0:00 [ksmd] root 26 2 26 0 1 11:19 ? SN 0:00 [khugepaged] root 27 2 27 0 1 11:19 ? S 0:00 [fsnotify_mark] root 28 2 28 0 1 11:19 ? S 0:00 [ecryptfs-kthrea] root 29 2 29 0 1 11:19 ? S< 0:00 [crypto] root 37 2 37 0 1 11:19 ? S< 0:00 [kthrotld] root 38 2 38 0 1 11:19 ? S 0:01 [scsi_eh_0] root 39 2 39 0 1 11:19 ? S 0:00 [scsi_eh_1] root 41 2 41 0 1 11:19 ? S 0:00 [scsi_eh_2] root 42 2 42 0 1 11:19 ? S 0:00 [scsi_eh_3] root 43 2 43 0 1 11:19 ? S 0:00 [kworker/u:3] root 231 2 231 0 1 11:19 ? S< 0:00 [firewire] root 258 2 258 0 1 11:19 ? S 0:01 [jbd2/sda1-8] root 259 2 259 0 1 11:19 ? S< 0:00 [ext4-dio-unwrit] root 310 1 310 0 1 11:19 ? S 0:00 upstart-udev-bridg root 317 1 317 0 1 11:19 ? Ss 0:00 udevd --daemon root 580 2 580 0 1 11:19 ? S< 0:00 [kpsmoused] root 613 2 613 0 1 11:19 ? S 0:00 [pccardd] root 744 2 744 0 1 11:19 ? S< 0:00 [tifm] root 835 2 835 0 1 11:19 ? S< 0:00 [l2cap] syslog 866 1 866 0 4 11:19 ? Sl 0:00 rsyslogd -c5 syslog 866 1 874 0 4 11:19 ? Sl 0:00 rsyslogd -c5 syslog 866 1 877 0 4 11:19 ? Sl 0:00 rsyslogd -c5 syslog 866 1 878 0 4 11:19 ? Sl 0:00 rsyslogd -c5 root 890 2 890 0 1 11:19 ? S 0:00 [flush-8:0] root 917 1 917 0 1 11:19 ? S 0:00 upstart-socket-bri root 926 1 926 0 1 11:19 ? Ss 0:00 smbd -F 103 929 1 929 0 1 11:19 ? Ss 0:09 dbus-daemon --syst root 939 1 939 0 1 11:19 ? S 0:00 /usr/sbin/modem-ma avahi 947 1 947 0 1 11:19 ? S 0:00 avahi-daemon: runn avahi 948 947 948 0 1 11:19 ? S 0:00 avahi-daemon: chro root 979 1 979 0 1 11:19 ? Ss 0:00 /usr/sbin/cupsd -F root 984 1 984 0 3 11:19 ? Ssl 0:00 NetworkManager root 984 1 1005 0 3 11:19 ? Ssl 0:00 NetworkManager root 984 1 1147 0 3 11:19 ? Ssl 0:00 NetworkManager root 1007 1 1007 0 2 11:19 ? Sl 0:00 /usr/lib/policykit root 1007 1 1010 0 2 11:19 ? Sl 0:00 /usr/lib/policykit root 1031 926 1031 0 1 11:19 ? S 0:00 smbd -F colord 1034 1 1034 0 3 11:19 ? Sl 0:00 /usr/lib/x86_64-li colord 1034 1 1050 0 3 11:19 ? Sl 0:00 /usr/lib/x86_64-li colord 1034 1 1308 0 3 11:19 ? Sl 0:00 /usr/lib/x86_64-li root 1045 317 1045 0 1 11:19 ? S 0:00 udevd --daemon root 1046 317 1046 0 1 11:19 ? S 0:00 udevd --daemon root 1062 1 1062 0 1 11:19 tty4 Ss+ 0:00 /sbin/getty -8 384 root 1067 1 1067 0 1 11:19 tty5 Ss+ 0:00 /sbin/getty -8 384 root 1072 1 1072 0 3 11:19 ? Ssl 0:00 lightdm root 1072 1 1117 0 3 11:19 ? Ssl 0:00 lightdm root 1072 1 1125 0 3 11:19 ? Ssl 0:00 lightdm root 1076 1 1076 0 1 11:19 tty2 Ss+ 0:00 /sbin/getty -8 384 root 1077 1 1077 0 1 11:19 tty3 Ss+ 0:00 /sbin/getty -8 384 root 1079 1 1079 0 1 11:19 tty6 Ss+ 0:00 /sbin/getty -8 384 root 1084 1 1084 0 1 11:19 ? Ss 0:00 acpid -c /etc/acpi root 1087 1 1087 0 1 11:19 ? Ss 0:00 cron daemon 1088 1 1088 0 1 11:19 ? Ss 0:00 atd root 1112 1 1112 0 1 11:19 ? Ss 0:04 /usr/sbin/irqbalan root 1124 1072 1124 5 1 11:19 tty7 Ss+ 23:25 /usr/bin/X :0 -aut root 1128 1 1128 0 1 11:19 ? S 0:00 /usr/sbin/lshd --d root 1146 984 1146 0 1 11:19 ? S 0:00 /sbin/dhclient -d root 1167 1 1167 0 2 11:19 ? Sl 0:00 /usr/lib/accountss root 1167 1 1175 0 2 11:19 ? Sl 0:00 /usr/lib/accountss root 1196 1 1196 0 1 11:19 ? Ss 0:00 /usr/sbin/winbindd root 1209 1 1209 0 1 11:19 ? Ss 0:00 /usr/sbin/bluetoot root 1210 1196 1210 0 1 11:19 ? S 0:00 /usr/sbin/winbindd root 1217 2 1217 0 1 11:19 ? S< 0:00 [krfcommd] root 1223 1 1223 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1229 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1231 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1232 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1233 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1234 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1235 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1236 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1237 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1238 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1239 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1240 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1241 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1242 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1243 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1244 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1245 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1246 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1247 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1248 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1249 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1250 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1251 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1252 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1253 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1254 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1255 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1256 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1257 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1258 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1259 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1260 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1261 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1262 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1263 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1264 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1265 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1266 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1267 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1268 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1269 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1270 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1271 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1272 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1273 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1274 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1275 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1276 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1277 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1278 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1279 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1280 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1281 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1282 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1283 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1284 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1285 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1286 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1287 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1288 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1289 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1290 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1291 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1296 0 65 11:19 ? Sl 0:00 /usr/sbin/console- root 1223 1 1297 0 65 11:19 ? Sl 0:00 /usr/sbin/console- user 1343 1072 1343 0 4 11:19 ? Ssl 0:00 gnome-session --se user 1343 1072 1510 0 4 11:20 ? Ssl 0:00 gnome-session --se user 1343 1072 1511 0 4 11:20 ? Ssl 0:00 gnome-session --se user 1343 1072 1513 0 4 11:20 ? Ssl 0:00 gnome-session --se root 1448 1 1448 0 1 11:19 ? Ss 0:00 nmbd -D user 1459 1343 1459 0 1 11:19 ? Ss 0:00 /usr/bin/ssh-agent user 1464 1 1464 0 1 11:19 ? S 0:00 /usr/bin/dbus-laun user 1477 1 1477 0 1 11:20 ? Ss 0:18 //bin/dbus-daemon root 1498 1 1498 0 1 11:20 tty1 Ss+ 0:00 /sbin/getty -8 384 user 1501 1 1501 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1506 1 1506 0 4 11:20 ? Ssl 0:00 /usr/lib/gvfs//gvf user 1506 1 1507 0 4 11:20 ? Ssl 0:00 /usr/lib/gvfs//gvf user 1506 1 1508 0 4 11:20 ? Ssl 0:00 /usr/lib/gvfs//gvf user 1506 1 1509 0 4 11:20 ? Ssl 0:00 /usr/lib/gvfs//gvf user 1516 1 1516 0 1 11:20 ? S 0:01 /usr/lib/libgconf2 user 1522 1343 1522 0 3 11:20 ? Sl 0:28 /usr/lib/gnome-set user 1522 1343 1528 0 3 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1522 1343 1530 0 3 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1523 1 1523 0 5 11:20 ? Sl 0:00 gnome-keyring-daem user 1523 1 1524 0 5 11:20 ? Sl 0:00 gnome-keyring-daem user 1523 1 1525 0 5 11:20 ? Sl 0:00 gnome-keyring-daem user 1523 1 1526 0 5 11:20 ? Sl 0:00 gnome-keyring-daem user 1523 1 1527 0 5 11:20 ? Sl 0:00 gnome-keyring-daem root 1532 1 1532 0 3 11:20 ? Sl 0:02 /usr/lib/upower/up root 1532 1 1533 0 3 11:20 ? Sl 0:00 /usr/lib/upower/up root 1532 1 1534 0 3 11:20 ? Sl 0:00 /usr/lib/upower/up user 1605 1 1605 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1605 1 1608 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1610 1343 1610 0 3 11:20 ? Sl 1:17 metacity user 1610 1343 2583 0 3 12:55 ? Sl 0:00 metacity user 1610 1343 2593 0 3 12:56 ? Sl 0:00 metacity user 1612 1 1612 0 3 11:20 ? Sl 0:04 /usr/bin/gnome-scr user 1612 1 1613 0 3 11:20 ? Sl 0:00 /usr/bin/gnome-scr user 1612 1 1614 0 3 11:20 ? Sl 0:00 /usr/bin/gnome-scr user 1619 1343 1619 0 3 11:20 ? Sl 4:06 gnome-panel user 1619 1343 1620 0 3 11:20 ? Sl 0:03 gnome-panel user 1619 1343 1621 0 3 11:20 ? Sl 0:02 gnome-panel user 1623 1 1623 0 3 11:20 ? Sl 0:00 /usr/lib/d-conf/dc user 1623 1 1624 0 3 11:20 ? Sl 0:00 /usr/lib/d-conf/dc user 1623 1 1626 0 3 11:20 ? Sl 0:00 /usr/lib/d-conf/dc user 1628 1 1628 0 1 11:20 ? S 0:08 syndaemon -i 0.5 - user 1629 1343 1629 0 3 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1629 1343 1632 0 3 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1629 1343 1633 0 3 11:20 ? Sl 0:00 /usr/lib/gnome-set user 1636 1 1636 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1637 1343 1637 0 2 11:20 ? Sl 0:00 nm-applet user 1637 1343 1667 0 2 11:20 ? Sl 0:00 nm-applet root 1639 1 1639 0 3 11:20 ? Sl 0:01 /usr/lib/udisks/ud root 1639 1 1642 0 3 11:20 ? Sl 0:00 /usr/lib/udisks/ud root 1639 1 1786 0 3 11:20 ? Sl 0:00 /usr/lib/udisks/ud user 1640 1343 1640 0 2 11:20 ? Sl 0:00 gnome-sound-applet user 1640 1343 1648 0 2 11:20 ? Sl 0:00 gnome-sound-applet root 1641 1639 1641 0 1 11:20 ? S 0:02 udisks-daemon: pol user 1644 1 1644 0 2 11:20 ? Sl 0:00 /usr/lib/gvfs/gvfs user 1644 1 1645 0 2 11:20 ? Sl 0:00 /usr/lib/gvfs/gvfs user 1647 1 1647 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1649 1343 1649 0 3 11:20 ? Sl 0:00 /usr/lib/policykit user 1649 1343 1652 0 3 11:20 ? Sl 0:00 /usr/lib/policykit user 1649 1343 2146 0 3 11:32 ? Sl 0:00 /usr/lib/policykit user 1651 1343 1651 0 3 11:20 ? Sl 0:22 nautilus -n user 1651 1343 1670 0 3 11:20 ? Sl 0:00 nautilus -n user 1651 1343 1672 0 3 11:20 ? Sl 0:00 nautilus -n user 1653 1343 1653 0 2 11:20 ? Sl 1:37 gxneur user 1653 1343 2581 0 2 12:55 ? Sl 0:00 gxneur user 1658 1 1658 0 2 11:20 ? S<l 0:02 /usr/bin/pulseaudi user 1658 1 1678 0 2 11:20 ? S<l 0:02 /usr/bin/pulseaudi rtkit 1660 1 1660 0 3 11:20 ? SNl 0:00 /usr/lib/rtkit/rtk rtkit 1660 1 1662 0 3 11:20 ? Sl 0:00 /usr/lib/rtkit/rtk rtkit 1660 1 1663 0 3 11:20 ? SNl 0:00 /usr/lib/rtkit/rtk user 1661 1343 1661 0 2 11:20 ? Sl 0:00 bluetooth-applet user 1661 1343 1668 0 2 11:20 ? Sl 0:00 bluetooth-applet user 1674 1 1674 0 3 11:20 ? Sl 0:25 /usr/lib/notify-os user 1674 1 1676 0 3 11:20 ? Sl 0:00 /usr/lib/notify-os user 1674 1 1677 0 3 11:20 ? Sl 0:00 /usr/lib/notify-os user 1683 1658 1683 0 1 11:20 ? S 0:00 /usr/lib/pulseaudi user 1684 1343 1684 0 2 11:20 ? Sl 0:00 telepathy-indicato user 1684 1343 1698 0 2 11:20 ? Sl 0:00 telepathy-indicato user 1696 1 1696 0 1 11:20 ? S 0:00 /usr/lib/telepathy user 1707 1343 1707 0 1 11:20 ? S 0:00 /usr/lib/gnome-dis user 1709 1 1709 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1711 1 1711 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1718 1 1718 0 1 11:20 ? S 0:00 /usr/lib/gvfs/gvfs user 1719 1343 1719 0 1 11:20 ? S 0:00 /usr/lib/gnome-use user 1722 1 1722 0 1 11:20 ? Ss 0:00 /usr/lib/apache2/m user 1723 1722 1723 0 1 11:20 ? S 0:00 /usr/lib/apache2/m user 1724 1722 1724 0 5 11:20 ? Sl 0:00 /usr/lib/apache2/m user 1724 1722 1726 0 5 11:20 ? Sl 0:00 /usr/lib/apache2/m user 1724 1722 1727 0 5 11:20 ? Sl 0:00 /usr/lib/apache2/m user 1724 1722 1728 0 5 11:20 ? Sl 0:00 /usr/lib/apache2/m user 1724 1722 1729 0 5 11:20 ? Sl 0:00 /usr/lib/apache2/m user 1731 1 1731 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-app user 1731 1 1735 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-app user 1733 1 1733 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-app user 1733 1 1737 0 2 11:20 ? Sl 0:00 /usr/lib/gnome-app user 1741 1343 1741 0 2 11:20 ? Sl 0:02 zeitgeist-datahub user 1741 1343 1745 0 2 11:20 ? Sl 0:00 zeitgeist-datahub user 1747 1 1747 0 2 11:20 ? Sl 0:00 /usr/bin/python /u user 1747 1 1762 0 2 11:20 ? Sl 0:00 /usr/bin/python /u user 1754 1747 1754 0 1 11:20 ? S 0:00 /bin/cat user 1784 1343 1784 0 1 11:20 ? S 0:00 /usr/bin/python /u user 1788 1343 1788 0 2 11:20 ? Sl 0:00 /usr/lib/evolution user 1788 1343 1796 0 2 11:20 ? Sl 0:00 /usr/lib/evolution user 1830 1 1830 0 3 11:20 ? Sl 0:48 /usr/bin/python /u user 1830 1 1855 0 3 11:20 ? Sl 0:00 /usr/bin/python /u user 1830 1 1862 0 3 11:20 ? Sl 0:00 /usr/bin/python /u user 1895 1343 1895 0 3 11:21 ? Sl 0:01 update-notifier user 1895 1343 1897 0 3 11:21 ? Sl 0:00 update-notifier user 1895 1343 1898 0 3 11:21 ? Sl 0:00 update-notifier user 1912 1343 1912 0 3 11:22 ? Sl 0:00 /usr/lib/deja-dup/ user 1912 1343 1914 0 3 11:22 ? Sl 0:00 /usr/lib/deja-dup/ user 1912 1343 1915 0 3 11:22 ? Sl 0:00 /usr/lib/deja-dup/ user 2471 1 2471 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2471 1 2472 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2471 1 2475 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2474 1 2474 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2474 1 2476 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2474 1 2478 0 3 12:33 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2480 1 2480 0 1 12:33 ? S 0:00 /usr/lib/gvfs/gvfs root 2545 1196 2545 0 1 12:42 ? S 0:00 /usr/sbin/winbindd root 2576 926 2576 0 1 12:54 ? S 0:00 smbd -F root 2578 926 2578 0 1 12:54 ? S 0:00 smbd -F root 2620 926 2620 0 1 12:58 ? S 0:00 smbd -F root 2622 926 2622 0 1 12:58 ? S 0:00 smbd -F user 2826 1 2826 0 3 13:01 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2826 1 2827 0 3 13:01 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2826 1 2829 0 3 13:01 ? Sl 0:00 /usr/lib/gvfs/gvfs user 2879 1 2879 0 1 13:12 ? S 0:00 /bin/sh /usr/bin/l user 2881 2879 2881 0 3 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2881 2879 2889 0 3 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2881 2879 2893 0 3 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2894 2881 2894 5 6 13:12 ? Sl 18:54 /usr/lib/libreoffi user 2894 2881 2895 0 6 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2894 2881 2897 0 6 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2894 2881 2899 0 6 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2894 2881 2900 0 6 13:12 ? Sl 0:00 /usr/lib/libreoffi user 2894 2881 2903 0 6 13:12 ? Sl 0:01 /usr/lib/libreoffi user 3227 1 3227 0 1 14:12 ? S 0:00 /bin/sh /usr/bin/s user 3251 3227 3251 96 18 14:12 ? Rl 281:44 /usr/bin/scilab-bi user 3251 3227 3252 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3253 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3254 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3255 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3256 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3257 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3258 0 18 14:12 ? Sl 0:02 /usr/bin/scilab-bi user 3251 3227 3259 0 18 14:12 ? Sl 0:01 /usr/bin/scilab-bi user 3251 3227 3260 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3261 0 18 14:12 ? Sl 0:10 /usr/bin/scilab-bi user 3251 3227 3262 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3263 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3271 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3276 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3277 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi user 3251 3227 3278 0 18 14:12 ? Sl 0:03 /usr/bin/scilab-bi user 3251 3227 3281 0 18 14:12 ? Sl 0:00 /usr/bin/scilab-bi root 3488 1 3488 0 1 14:23 ? S 0:00 dbus-launch --auto root 3489 1 3489 0 1 14:23 ? Ss 0:01 //bin/dbus-daemon root 3494 1 3494 0 3 14:23 ? Sl 0:00 /usr/lib/d-conf/dc root 3494 1 3495 0 3 14:23 ? Sl 0:00 /usr/lib/d-conf/dc root 3494 1 3497 0 3 14:23 ? Sl 0:00 /usr/lib/d-conf/dc root 3761 1 3761 0 1 15:20 ? Ss 0:00 kdeinit4: kdeinit4 root 3764 3761 3764 0 1 15:20 ? S 0:00 kdeinit4: klaunche root 3767 1 3767 0 1 15:20 ? S 0:01 kdeinit4: kded4 [k root 3845 1 3845 0 1 15:23 ? S 0:00 /usr/bin/kuiserver root 3851 1 3851 1 7 15:23 ? Sl 3:24 /usr/bin/knotify4 root 3851 1 3856 0 7 15:23 ? Sl 0:00 /usr/bin/knotify4 root 3851 1 3860 0 7 15:23 ? Sl 0:00 /usr/bin/knotify4 root 3851 1 3861 0 7 15:23 ? Sl 0:00 /usr/bin/knotify4 root 3851 1 3863 0 7 15:23 ? Sl 0:00 /usr/bin/knotify4 root 3851 1 3864 0 7 15:23 ? Sl 0:00 /usr/bin/knotify4 root 3851 1 4502 0 7 15:44 ? Sl 0:00 /usr/bin/knotify4 root 4288 1 4288 0 1 15:37 ? S 0:00 /usr/lib/libgconf2 user 4952 1 4952 2 23 17:19 ? Sl 3:07 /usr/lib/firefox-7 user 4952 1 4957 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4958 0 23 17:19 ? Sl 0:02 /usr/lib/firefox-7 user 4952 1 4959 0 23 17:19 ? Sl 0:06 /usr/lib/firefox-7 user 4952 1 4960 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4962 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4963 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4964 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4966 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4974 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4975 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4976 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4977 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4978 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4980 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4981 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4984 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4985 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4988 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 4989 0 23 17:19 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 5565 0 23 17:42 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 5569 0 23 17:43 ? Sl 0:00 /usr/lib/firefox-7 user 4952 1 5694 0 23 18:12 ? Sl 0:00 /usr/lib/firefox-7 user 5018 1 5018 0 1 17:20 ? Ss 0:00 kdeinit4: kdeinit4 user 5021 5018 5021 0 1 17:20 ? S 0:00 kdeinit4: klaunche user 5023 1 5023 0 2 17:20 ? Sl 0:01 kdeinit4: kded4 [k user 5023 1 5025 0 2 17:20 ? Sl 0:00 kdeinit4: kded4 [k user 5037 1 5037 0 2 17:21 ? Sl 0:00 /usr/bin/kuiserver user 5037 1 5039 0 2 17:21 ? Sl 0:00 /usr/bin/kuiserver user 5393 1 5393 1 8 17:38 ? Sl 1:24 /usr/bin/knotify4 user 5393 1 5394 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5395 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5396 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5399 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5401 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5402 0 8 17:38 ? Sl 0:00 /usr/bin/knotify4 user 5393 1 5418 0 8 17:39 ? Sl 0:00 /usr/bin/knotify4 root 5705 2 5705 0 1 18:19 ? S 0:01 [kworker/1:2] root 5738 2 5738 0 1 18:46 ? S 0:00 [kworker/0:2] root 5746 2 5746 0 1 18:56 ? S 0:00 [kworker/1:0] root 5752 2 5752 0 1 18:56 ? S 0:00 [kworker/0:0] root 5807 2 5807 0 1 19:01 ? S 0:00 [kworker/1:1] root 5808 2 5808 0 1 19:01 ? S 0:00 [kworker/0:1] user 5810 1 5810 1 4 19:01 ? Sl 0:03 gnome-terminal user 5810 1 5812 0 4 19:02 ? Sl 0:00 gnome-terminal user 5810 1 5813 0 4 19:02 ? Sl 0:00 gnome-terminal user 5810 1 5816 0 4 19:02 ? Sl 0:00 gnome-terminal user 5814 5810 5814 0 1 19:02 ? S 0:00 gnome-pty-helper user 5815 5810 5815 0 1 19:02 pts/1 Ss 0:00 bash root 6174 2 6174 0 1 19:02 ? S 0:00 [kworker/0:3] user 6198 5815 6198 0 1 19:05 pts/1 R+ 0:00 ps a -eLf
Then nothing is preventing you from killing the process.
How are you trying to kill the command? Also, could you point us to the bug report you filled at scilab.org?
I am sorry for my poor English but we didn't understand each other. I wrote that only Nightly Build (latest unstable non-released test version) stay unkillabe. My original summary is "Trouble to plot by SciLab after upgrading to UBUNTU 11.10". Other version of SciLab only hangs (but can be killed). I try NightlyBuild to test a compatibility with future release. I tried to report a bug to SciLab but there was an answer: "It is a trouble of Intel GMA Driver, not a SciLab trouble. So, I report a bug to You and ask to help me.
The bug URL is http://bugzilla.scilab.org/show_bug.cgi?id=3843. My comments are at the end. Citation: Sylvestre LEDRU 2011-10-16 18:45:19 CEST: "Anyway, it is likely to be a problem with Ubuntu and the way it handles intel graphic drivers..."
Could you try reporting it at Ubuntu's bugzilla as well? It could be one of the ubuntu's patches which trigger this.. I don't see how this could be related to the driver. But in any case, I think you could kill scilab by running 'killall scilab-bin' - or, if it doesn't works, 'killall -9 scilab-bin'. If I understood your problem correctly, it could be caused by the fact that scilab forks itself into background, so when you kill the master process the process which draws on screen stays there. Killall should take care of all the instances.
I haven't seen a bug related to the graphics driver here yet, so closing as invalid. Please do reopen if you have any examples of rendering corruption, system instablity or otherwise.
This bug is a bug of the packet libgl1-mesa-glx. To workaround install libgl1-mesa-swx11 by Synaptic Package Manager. But "Gnome" interface hangs. Before applying change it to any other interface. Look at: https://bugs.launchpad.net/ubuntu/+source/scilab/+bug/876195
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