Re: [Vserver] Fwd: [PATCH] pidspace is_init()
On Tue, Aug 01, 2006 at 10:28:34AM -0700, Sukadev Bhattiprolu wrote: > CCing Vserver and OpenVz lists. > > BTW, can we add these two lists to the lxc-devel list ? that's fine with me, Kir will decide for the OVZ one best, Herbert ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Fwd: [PATCH] pidspace is_init()
CCing Vserver and OpenVz lists.
BTW, can we add these two lists to the lxc-devel list ?
- Forwarded message from Sukadev Bhattiprolu <[EMAIL PROTECTED]> -
| Date: Tue, 1 Aug 2006 09:41:26 -0700
| From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
| To: Linux Containers on Source Forge <[EMAIL PROTECTED]>,
| [EMAIL PROTECTED]
| Cc: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED],
| [EMAIL PROTECTED]
| Subject: [PATCH] pidspace is_init()
|
| Eric,
|
| This is an updated version of your is_init() patch.
| (http://lkml.org/lkml/2006/2/6/280). It applies cleanly to 2.6.18-rc2
| and replaces a few more instances of ->pid == 1 with is_init().
|
| Further, is_init() checks pid (for now) and thus removes dependency on
| your other patches.
|
| Please review and let me know if I can send it out to LKML.
|
| Couple of questions:
|
| Are there cases where child_reaper is not pid = 1. Should the
| "tsk == child_reaper" check in do_exit() be replaced with is_init() ?
|
| Looks like, we would need a similar, is_idle() wrapper for "pid==0"
| checks - although the name is_idle_task() maybe more intuitive. If
| so, should we rename is_init() to is_init_task() ?
|
|
| Eric's original description:
|
| There are a lot of places in the kernel where we test for init
| because we give it special properties. Most significantly init
| must not die. This results in code all over the kernel test
| ->pid == 1.
|
| Introduce is_init to capture this case.
|
| With multiple pid spaces for all of the cases affected we are
| looking for only the first process on the system, not some other
| process that has pid == 1.
|
| Signed-off-by: Eric W. Biederman <[EMAIL PROTECTED]>
| Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
| Cc: Dave Hansen <[EMAIL PROTECTED]>
| Cc: Serge Hallyn <[EMAIL PROTECTED]>
| Cc: Cedric Le Goater <[EMAIL PROTECTED]>
| Cc: [EMAIL PROTECTED]
|
|
| arch/alpha/mm/fault.c|2 +-
| arch/arm/mm/fault.c |2 +-
| arch/arm26/mm/fault.c|2 +-
| arch/i386/lib/usercopy.c |2 +-
| arch/i386/mm/fault.c |2 +-
| arch/ia64/mm/fault.c |2 +-
| arch/m32r/mm/fault.c |2 +-
| arch/m68k/mm/fault.c |2 +-
| arch/mips/mm/fault.c |2 +-
| arch/powerpc/mm/fault.c |2 +-
| arch/powerpc/platforms/pseries/ras.c |2 +-
| arch/ppc/kernel/traps.c |2 +-
| arch/ppc/mm/fault.c |2 +-
| arch/s390/mm/fault.c |2 +-
| arch/sh/mm/fault.c |2 +-
| arch/sh64/mm/fault.c |6 +++---
| arch/um/kernel/trap.c|2 +-
| arch/x86_64/mm/fault.c |4 ++--
| arch/xtensa/mm/fault.c |2 +-
| drivers/char/sysrq.c |2 +-
| include/linux/sched.h| 10 ++
| kernel/capability.c |2 +-
| kernel/cpuset.c |2 +-
| kernel/exit.c|2 +-
| kernel/kexec.c |2 +-
| kernel/ptrace.c |1 +
| kernel/sysctl.c |2 +-
| mm/oom_kill.c|6 +++---
| security/commoncap.c |2 +-
| security/seclvl.c|9 +
| 30 files changed, 48 insertions(+), 36 deletions(-)
|
| Index: linux-2.6.18-rc2c/arch/alpha/mm/fault.c
| ===
| --- linux-2.6.18-rc2c.orig/arch/alpha/mm/fault.c 2006-07-28
09:20:03.0 -0700
| +++ linux-2.6.18-rc2c/arch/alpha/mm/fault.c 2006-07-28 09:35:37.0
-0700
| @@ -193,7 +193,7 @@ do_page_fault(unsigned long address, uns
| /* We ran out of memory, or some other thing happened to us that
| made us unable to handle the page fault gracefully. */
| out_of_memory:
| - if (current->pid == 1) {
| + if (is_init(current)) {
| yield();
| down_read(&mm->mmap_sem);
| goto survive;
| Index: linux-2.6.18-rc2c/arch/arm/mm/fault.c
| ===
| --- linux-2.6.18-rc2c.orig/arch/arm/mm/fault.c2006-07-28
09:20:04.0 -0700
| +++ linux-2.6.18-rc2c/arch/arm/mm/fault.c 2006-07-31 17:53:40.0
-0700
| @@ -197,7 +197,7 @@ survive:
| return fault;
| }
|
| - if (tsk->pid != 1)
| + if (!is_init(tsk))
| goto out;
|
| /*
| Index: linux-2.6.18-rc2c/arch/arm26/mm/fault.c
| ===
| --- linux-2.6.18-rc2c.orig/arch/arm26/mm/fault.c 2006-07-28
09:19:59.0 -0700
| +++ linux-2.6.18-rc2c/arch/arm26/mm/fault.c 2006-07-31
[Vserver] IBM storage support
Hello, Have anyone succeded to compile this driver into (or as module) the latest 2.6 smp kernel? http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-64628 -- Med venlig hilsen / Best regards, Henrik Woffinden ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Vserver stop problem
Hi all. Is there any chance to stop (or maybe kill) one of the vservers if i get this strange things: [EMAIL PROTECTED] vserver myserver stop vkill: vc_ctx_kill(): No such process A timeout or other error occured while waiting for the synchronization signal from vserver 'myserver'. The vserver will be killed nevertheless... Vserver '/etc/vservers/myserver' still running unexpectedly; please investigate it manually... umount: .: not mounted umount: .: not mounted Warning: Executing wildcard deletion to stay compatible with old scripts. Explicitly specify the prefix length (xxx.xxx.xxx.xxx/32) to avoid this warning. This special behaviour is likely to disappear in further releases, fix your scripts! RTNETLINK answers: Cannot assign requested address And why is this happening? There are another two vservers on this host and they function properly. -- Regards, Vladimir mailto:[EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] time in guest vserver
thanks for the hint !I used date("Y-m-d H:i:s") which worked as expected ^^once again for the quick reply.2006/8/1, Michael S. Zick <
[EMAIL PROTECTED]>:On Tue August 1 2006 05:29, Jonathan Dray wrote:> I have a correct output with the date function inside guests :
> mardi 2006, 12:07:14 (UTC+0200)>> But time only give me 0 :>> real0m0.000s> user0m0.000s> sys 0m0.000s>> Is this normal ?>Yes
> The problem is that the php time() function takes the results of the system> time call.>try: date> And I need the time() value to synchronise database values.> Is there any way to have the correct time ?
>The date-time value would probably be better than usingthe elapsed time of a process.Mike___Vserver mailing list
Vserver@list.linux-vserver.orghttp://list.linux-vserver.org/mailman/listinfo/vserver
___
Vserver mailing list
Vserver@list.linux-vserver.org
http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] guest network interface disappears
Hi there, on Tuesday, August 1, 2006 at 1:15:47 PM there was posted: AG> the sysctl.conf file seems more appropriate for this kind of AG> settings, You're right - but as I never used it before, I wasn't even aware of its existance ;-) AG> see man page for syntax :) Thx 4 that hint. -- regards 'n greez, Guenther Fuchs (aka "muh" and "powerfox") ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] guest network interface disappears
> > Further hint: I've placed this as line in /etc/rc.d/rc.local on the > host so it get's loaded already on boot, that makes it easier. > > the sysctl.conf file seems more appropriate for this kind of settings, see man page for syntax :) regards, Ghislain. ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] time in guest vserver
On Tue August 1 2006 05:29, Jonathan Dray wrote: > I have a correct output with the date function inside guests : > mardi 2006, 12:07:14 (UTC+0200) > > But time only give me 0 : > > real0m0.000s > user0m0.000s > sys 0m0.000s > > Is this normal ? > Yes > The problem is that the php time() function takes the results of the system > time call. > try: date > And I need the time() value to synchronise database values. > Is there any way to have the correct time ? > The date-time value would probably be better than using the elapsed time of a process. Mike ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] guest network interface disappears
Hi there, on Tuesday, August 1, 2006 at 12:37:02 PM there was posted: GF> # /sbin/sysctl -w net.ipv4.conf.all.promote_secondaries=1 MP> This actually solved our problem. Further hint: I've placed this as line in /etc/rc.d/rc.local on the host so it get's loaded already on boot, that makes it easier. MP> Thanks very much for the hint. You're welcome. -- regards 'n greez, Guenther Fuchs (aka "muh" and "powerfox") ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] guest network interface disappears
Guenther Fuchs wrote: Hi there, on Tuesday, July 25, 2006 at 5:58:17 PM there was posted: MSZ> There is a flag in /proc, I forget where, that can be set MSZ> to change the above behavior. # /sbin/sysctl -w net.ipv4.conf.all.promote_secondaries=1 This actually solved our problem. Thanks very much for the hint. Martin Pajak ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] time in guest vserver
I have a correct output with the date function inside guests : mardi 1 août 2006, 12:07:14 (UTC+0200)But time only give me 0 :real 0m0.000suser 0m0.000ssys 0m0.000sIs this normal ? The problem is that the php time() function takes the results of the system time call.And I need the time() value to synchronise database values.Is there any way to have the correct time ? ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
