https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c1 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- CC|kasievers@novell.com | Summary|systemd: too many repeated |sysvinit: too many repeated |messages on ttyS0 console |messages on ttyS0 console --- Comment #1 from Jiri Slaby 2011-02-16 09:48:50 UTC --- Ah, sorry I booted with sysvinit this time. So that's its fault. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c3 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kasievers@novell.com, | |werner@novell.com Summary|sysvinit: too many repeated |sysvinit+systemd: too many |messages on ttyS0 console |repeated messages on ttyS0 | |console --- Comment #3 from Jiri Slaby 2011-02-16 10:08:41 UTC --- I don't know whose fault is this then... Cmdline: BOOT_IMAGE=/boot/vmlinuz-2.6.37-22-default root=UUID=dceb6665-da77-45bd- 9744-06dfaa3811ea 3 console=tty0 console=ttyS0,115200 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c4 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |jslaby@novell.com --- Comment #4 from Dr. Werner Fink 2011-02-16 10:21:02 UTC --- Hmmm .... I'm pretty sure that the blogd does send its messages only once. You may try to disable the blogd by adding the key word `quiet' to the kernels command line -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c6 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mmarek@novell.com --- Comment #6 from Dr. Werner Fink 2011-02-16 10:32:10 UTC --- Adding maintainer of mkinitrd to carbon copy list. Hi Michal! -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c8 --- Comment #8 from Dr. Werner Fink 2011-02-16 11:28:44 UTC --- To make this active the command mkinitrd should be executed otherwise the initrd will not be changed :) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c10 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #414407|0 |1 is obsolete| | --- Comment #10 from Jiri Slaby 2011-02-16 13:32:10 UTC --- Created an attachment (id=414412) --> (http://bugzilla.novell.com/attachment.cgi?id=414412) dmesg from kernel with vfs_write intercepted updated Well, I print also fd and open file. It makes more sense: fd=1 (/dev/console) cnt=78 ret=78 redirected_tty_write str=^MBoot logging st fd=5 (/var/run/blogd.pid) cnt=5 ret=5 do_sync_write str=1092X fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st fd=7 (/dev/tty0) cnt=118 ret=118 redirected_tty_write str=^MBoot logging st fd=4 (/dev/shm/initrd.msg) cnt=118 ret=118 do_sync_write str=^MBoot logging st fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st fd=7 (/dev/tty0) cnt=118 ret=118 redirected_tty_write str=^MBoot logging st fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st fd=7 (/dev/tty0) cnt=118 ret=118 redirected_tty_write str=^MBoot logging st fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st fd=7 (/dev/tty0) cnt=118 ret=118 redirected_tty_write str=^MBoot logging st fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c11 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |jslaby@novell.com AssignedTo|bnc-team-screening@forge.pr |werner@novell.com |ovo.novell.com | --- Comment #11 from Dr. Werner Fink 2011-02-16 14:00:26 UTC --- Hmmm ... I'm a bit puzzled as I do not see how this should happen. The blogd writes out each message to the physical devices only once. This would lead to the assumption that those messages will be read by blogd from the new /dev/console (a tty from pty/tty pair) again and again? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c13 --- Comment #13 from Dr. Werner Fink 2011-02-16 14:29:24 UTC --- I can follow the lines fd=1 (/dev/console) cnt=78 ret=78 redirected_tty_write str=^MBoot logging st fd=5 (/var/run/blogd.pid) cnt=5 ret=5 do_sync_write str=1092X fd=1 (/dev/ttyS0) cnt=118 ret=118 tty_write str=^MBoot logging st fd=7 (/dev/tty0) cnt=118 ret=118 redirected_tty_write str=^MBoot logging st fd=4 (/dev/shm/initrd.msg) cnt=118 ret=118 do_sync_write str=^MBoot logging st but after this the code of blogd does not show how this should go on: parselog(trans, cnt); /* Parse and make copy of the input */ for (c = cons; c; c = c->next) { if (c->fd < 0) continue; safeout(c->fd, (char*)trans, cnt, c->max_canon); (void)tcdrain(c->fd); /* Write copy of input to real tty */ } flushlog(); the file descriptor fd=4 is used by the thread triggered by flushlog() this shows that this is no an endless loop, that is we have two physical devices with file descriptors fd=1 and fd=7. Please could you determine if the blogd rereads its own input even from the new /dev/console? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c15 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |matz@novell.com --- Comment #15 from Dr. Werner Fink 2011-02-17 12:30:00 UTC --- The code can not do this ... even if the blogd function safein() would be fooled by ioctl FIONREAD or by select(), the outer loop would require that the log file of file descriptor 4 would be hit after fd 1 and 7 as the character buffer trans[] would be filled with the input from /dev/console. Adding gcc maintainer as he may now what is going on here -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c17 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #414412|0 |1 is obsolete| | Status|NEEDINFO |NEW InfoProvider|jslaby@novell.com | --- Comment #17 from Jiri Slaby 2011-02-17 12:45:03 UTC --- Created an attachment (id=414691) --> (http://bugzilla.novell.com/attachment.cgi?id=414691) read+write syscalls with injected code $ grep preping.91 dmesg|sed 's/.*sys_//' read: fd=0 (/dev/ptmx) cnt=1103 ret=1103 tty_read str=preping 91-killu write: fd=1 (/dev/ttyS0) cnt=255 ret=255 tty_write str=preping 91-killu write: fd=4 (/dev/shm/initrd.msg) cnt=1103 ret=1103 do_sync_write str=preping 91-killu write: fd=7 (/dev/tty0) cnt=255 ret=255 redirected_tty_write str=preping 91-killu read: fd=0 (/dev/ptmx) cnt=1103 ret=1103 tty_read str=preping 91-killu write: fd=1 (/dev/ttyS0) cnt=255 ret=255 tty_write str=preping 91-killu write: fd=4 (/dev/shm/initrd.msg) cnt=1103 ret=1103 do_sync_write str=preping 91-killu write: fd=7 (/dev/tty0) cnt=255 ret=255 redirected_tty_write str=preping 91-killu read: fd=0 (/dev/ptmx) cnt=1103 ret=1103 tty_read str=preping 91-killu write: fd=1 (/dev/ttyS0) cnt=255 ret=255 tty_write str=preping 91-killu write: fd=4 (/dev/shm/initrd.msg) cnt=1103 ret=1103 do_sync_write str=preping 91-killu write: fd=7 (/dev/tty0) cnt=255 ret=255 redirected_tty_write str=preping 91-killu It looks like (for example) this message is read from /dev/ptmx multiple times. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c19 --- Comment #19 from Dr. Werner Fink 2011-02-17 13:03:46 UTC --- (In reply to comment #17) Why does it happen that read(2) can read the same string several times from the master of the slave pty used as system console? This is new in comparison to older kernels. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c21 Michael Matz changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Normal |Major --- Comment #21 from Michael Matz 2011-02-17 13:25:48 UTC --- (FWIW, right now I'm assuming this has nothing to do with GCC. It seems clear to me that the cause is that messages written to /dev/console are sometimes reflected back to /dev/ptmx by the kernel, and that that is the cause for blogd sometimes repeating the same message) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c23 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Platform|Other |x86-64 InfoProvider|jslaby@novell.com | --- Comment #23 from Jiri Slaby 2011-02-17 13:42:23 UTC --- (In reply to comment #22)

OK, I'll remove you from CC

Jiri, please tell me your archtitecture, as I'd like to attach a blogd without switching any terminal into raw mode.

x86_64 It's like it opens /dev/ptmx for reading messages. It writes the messages to /dev/console which is /dev/ptm0 which gets to /dev/ptmx: tty_insert_flip_string_fixed_flag: blogd idx=0 name=ptm0 str=^MBoot logging st sys_write: fd=1 (/dev/console) cnt=78 ret=78 redirected_tty_write str=^MBoot logging st sys_read: fd=0 file=ffff880039d57000 (/dev/ptmx) cnt=78 ret=78 tty_read str=^MBoot logging st sys_write: fd=1 (/dev/ttyS0) cnt=78 ret=78 tty_write str=^MBoot logging st tty_insert_flip_string_fixed_flag: blogd idx=0 name=ptm0 str=^MBoot logging st sys_write: fd=7 (/dev/tty0) cnt=78 ret=78 redirected_tty_write str=^MBoot logging st sys_read: fd=0 file=ffff880039d57000 (/dev/ptmx) cnt=118 ret=118 tty_read str=sys_write: fd=4 (/dev/shm/initrd.msg) cnt=78 ret=78 do_sync_write str=XBoot logging st preping 11-block -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |jslaby@novell.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|jslaby@novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c27 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #415233|0 |1 is obsolete| | --- Comment #27 from Jiri Slaby 2011-02-22 21:21:24 UTC --- Created an attachment (id=415610) --> (http://bugzilla.novell.com/attachment.cgi?id=415610) screenlog with updated blogd (In reply to comment #26)

Hmmm ... that is strange, are you sure that you have removed the workaround mentioned in comment #7 ... just run

lsinitrd /boot/initrd | grep blogd

Yeah, my bad. chmod a+x /sbin/blogd helped. The issue persists. I fed the output through s/[\r\n][\r\n]*/\r/ to get rid of 600k of crap. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c28 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |gregkh@novell.com InfoProvider| |gregkh@novell.com --- Comment #28 from Dr. Werner Fink 2011-03-02 11:12:53 UTC --- .. The only visible change at tty kernel API is CONFIG_UNIX98_PTYS=y CONFIG_DEVPTS_MULTIPLE_INSTANCES=y <<<<<<< CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=0 that is what does devpts multiple instances do? I do not understand why blogd is able to reread its own messages send to both /dev/tty0 and /dev/ttyS0 even if the console is explicit set to /dev/pts/0 and blogd only reads from the corresponding /dev/ptm0. Does this mean that with the actual kernel blogd has to close all file descriptors for /dev/console (0, 1, and 2) to reopen them after the ioctl TIOCCONS?? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c30 Greg Kroah-Hartman changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|gregkh@novell.com | --- Comment #30 from Greg Kroah-Hartman 2011-03-09 17:10:57 UTC --- i'm confused, what do you need from me here? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c32 --- Comment #32 from Dr. Werner Fink 2011-03-10 08:19:41 UTC --- I've added Hannes to carbon copy list. Hi Hannes, you'll find in attchment #417071 an blogd binary for x86_64 which explicit closes file descriptor 0 aka /dev/console to open the pts device after the ioctl TIOCCONS as new system console. The question is: does this work around the new (mis)behaviour of the kernel of 11.4 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c34 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |maintenance@opensuse.org --- Comment #34 from Dr. Werner Fink 2011-03-10 14:11:50 UTC --- OK ... then this change should go to 11.4 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c36 Marcus Meissner changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |meissner@novell.com --- Comment #36 from Marcus Meissner 2011-03-14 14:46:41 UTC --- the sysvinit submission currentöly in 11.4 is the same as we shipped with 11.4. (obs request 63912) top of changes is still: ------------------------------------------------------------------- Tue Feb 15 15:44:33 CET 2011 - werner@suse.de - New killproc version 2.19: bug fix update and there is no diff to the 11.4 shipping one. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c38 --- Comment #38 from Marcus Meissner 2011-03-14 15:31:53 UTC --- seems sensible +1 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c40 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #40 from Dr. Werner Fink 2011-03-15 09:29:31 UTC --- fixed -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c42 Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |adrian@novell.com Component|Basesystem |Kernel Platform|x86-64 |All AssignedTo|werner@novell.com |kernel-maintainers@forge.pr | |ovo.novell.com --- Comment #42 from Dr. Werner Fink 2011-03-23 12:08:24 UTC --- The fixed version does its work for console=ttyS0,38400n8 console=tty0 in /boot/grub/menu.lst but *not* for the reverse order console=tty0 console=ttyS0,38400n8 something wents wrong in the kernel. IMHO this is a regression in the kernel code for serial console handling as this had worked flawless with 2.6.34. See also bug #642289 ... I've tried to debug this bug on a virtual system, therefore I've detected the behaviour above. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c Dr. Werner Fink changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |NEEDINFO InfoProvider| |jslaby@novell.com AssignedTo|bnc-team-screening@forge.pr |werner@novell.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=672450 https://bugzilla.novell.com/show_bug.cgi?id=672450#c45 --- Comment #45 from Bernhard Wiedemann 2011-07-26 15:00:40 CEST --- This is an autogenerated message for OBS integration: This bug (672450) was mentioned in https://build.opensuse.org/request/show/77067 Factory / sysvinit -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.