From: Cedric Le Goater <clg@fr.ibm.com>
To: Andrey Mirkin <major@openvz.org>
Cc: containers@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, Pavel Emelyanov <xemul@openvz.org>
Subject: Re: [PATCH 08/10] Introduce functions to restart a process
Date: Mon, 20 Oct 2008 11:23:24 +0200 [thread overview]
Message-ID: <48FC4E0C.7050008@fr.ibm.com> (raw)
In-Reply-To: <1224285098-573-9-git-send-email-major@openvz.org>
Hello Andrey !
> diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
> index 109792b..a4848a3 100644
> --- a/arch/x86/kernel/entry_32.S
> +++ b/arch/x86/kernel/entry_32.S
> @@ -225,6 +225,7 @@ ENTRY(ret_from_fork)
> GET_THREAD_INFO(%ebp)
> popl %eax
> CFI_ADJUST_CFA_OFFSET -4
> +ret_from_fork_tail:
> pushl $0x0202 # Reset kernel eflags
> CFI_ADJUST_CFA_OFFSET 4
> popfl
> @@ -233,6 +234,26 @@ ENTRY(ret_from_fork)
> CFI_ENDPROC
> END(ret_from_fork)
>
> +ENTRY(i386_ret_from_resume)
> + CFI_STARTPROC
> + pushl %eax
> + CFI_ADJUST_CFA_OFFSET 4
> + call schedule_tail
> + GET_THREAD_INFO(%ebp)
> + popl %eax
> + CFI_ADJUST_CFA_OFFSET -4
> + movl (%esp), %eax
> + testl %eax, %eax
> + jz 1f
> + pushl %esp
> + call *%eax
> + addl $4, %esp
> +1:
> + addl $256, %esp
> + jmp ret_from_fork_tail
> + CFI_ENDPROC
> +END(i386_ret_from_resume)
Could you explain why you need to do this
call *%eax
is it related to the freezer code ?
C.
next prev parent reply other threads:[~2008-10-20 9:25 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-17 23:11 [PATCH 0/10] OpenVZ kernel based checkpointing/restart (v2) Andrey Mirkin
2008-10-17 23:11 ` [PATCH 01/10] Introduce trivial sys_checkpoint and sys_restore system calls Andrey Mirkin
2008-10-17 23:11 ` [PATCH 02/10] Make checkpoint/restart functionality modular Andrey Mirkin
2008-10-17 23:11 ` [PATCH 03/10] Introduce context structure needed during checkpointing/restart Andrey Mirkin
2008-10-17 23:11 ` [PATCH 04/10] Introduce container dump function Andrey Mirkin
2008-10-17 23:11 ` [PATCH 05/10] Introduce function to dump process Andrey Mirkin
2008-10-17 23:11 ` [PATCH 06/10] Introduce functions to dump mm Andrey Mirkin
2008-10-17 23:11 ` [PATCH 07/10] Introduce function for restarting a container Andrey Mirkin
2008-10-17 23:11 ` [PATCH 08/10] Introduce functions to restart a process Andrey Mirkin
2008-10-17 23:11 ` [PATCH 09/10] Introduce functions to restore mm Andrey Mirkin
2008-10-17 23:11 ` [PATCH 10/10] Add support for multiple processes Andrey Mirkin
2008-10-27 15:58 ` Oren Laadan
2008-10-30 4:55 ` [Devel] " Andrey Mirkin
2008-10-20 9:23 ` Cedric Le Goater [this message]
2008-10-22 8:49 ` [Devel] Re: [PATCH 08/10] Introduce functions to restart a process Andrey Mirkin
2008-10-22 9:25 ` Louis Rilling
2008-10-22 10:06 ` Greg Kurz
2008-10-22 10:44 ` Louis Rilling
2008-10-22 12:44 ` Greg Kurz
2008-10-22 10:12 ` Andrey Mirkin
2008-10-22 10:46 ` Louis Rilling
2008-10-23 8:53 ` Andrey Mirkin
2008-10-22 15:25 ` Oren Laadan
2008-10-23 9:00 ` Andrey Mirkin
2008-10-23 13:57 ` Dave Hansen
2008-10-24 3:57 ` Andrey Mirkin
2008-10-25 21:10 ` Oren Laadan
2008-10-29 14:52 ` Andrey Mirkin
2008-10-30 15:59 ` Oren Laadan
2008-10-22 12:47 ` Cedric Le Goater
2008-10-23 9:54 ` Andrey Mirkin
2008-10-23 13:49 ` Dave Hansen
2008-10-24 4:04 ` Andrey Mirkin
2008-10-20 13:25 ` Louis Rilling
2008-10-23 10:56 ` [Devel] " Andrey Mirkin
2008-10-20 12:25 ` [PATCH 06/10] Introduce functions to dump mm Louis Rilling
2008-10-22 8:58 ` [Devel] " Andrey Mirkin
2008-10-20 17:21 ` Dave Hansen
2008-10-23 8:43 ` [Devel] " Andrey Mirkin
2008-10-23 13:51 ` Dave Hansen
2008-10-24 4:07 ` Andrey Mirkin
2008-10-20 11:02 ` [PATCH 05/10] Introduce function to dump process Louis Rilling
2008-10-24 4:15 ` [Devel] " Andrey Mirkin
2008-10-20 17:48 ` Serge E. Hallyn
2008-10-24 4:40 ` [Devel] " Andrey Mirkin
2008-10-20 17:02 ` [PATCH 03/10] Introduce context structure needed during checkpointing/restart Dave Hansen
2008-10-29 15:30 ` [Devel] " Andrey Mirkin
2008-10-20 16:51 ` [PATCH 02/10] Make checkpoint/restart functionality modular Dave Hansen
2008-10-20 16:59 ` Serge E. Hallyn
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