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2010.10.06:11:36:27
Nobel z fizyki za przełomowy materiał (wideo)
Szybsze komputery i przejrzyste ekrany dotykowe mogą pojawić się na rynku dzięki grafenowi. Jest to supermocny, cienki materiał odkryty w roku 2004. Wczoraj nagrodę Nobla z fizyki otrzymali Andriej Gejm i Konstantin Nowosiołow za przełomowe eksperymenty związane z grafenem.

 

140422404307_542760007448Oren Laadan
From: Nathan Lynch <ntl@xxxxxxxxx A checkpointed task image may specify a value for the DABR (Data Access Breakpoint Register). The restart code needs to validate this value before making any c

 
105629624661_558960007957Li Zefan
From: Dan Smith <danms@xxxxxxxxxx Implement the s390 arch-specific checkpoint/restart helpers. This is on top of Oren Laadans c/r code. With these, I am able to checkpoint and restart simple p

 
109223424301_537360007368Li Zefan
From: Dan Smith <danms@xxxxxxxxxx Implement the s390 arch-specific checkpoint/restart helpers. This is on top of Oren Laadans c/r code. With these, I am able to checkpoint and restart simple p

 
152521584345_500560007763Andrew Morton
Quoting Li Zefan (lizf@xxxxxxxxxxxxxx): While walking through the whitelist, if the DEV_ALL item is found, no more check is needed. Right, because the DEV_ALL item always has all permissions.

 
126525044656_580160007689Andrew Morton
Quoting Li Zefan (lizf@xxxxxxxxxxxxxx): While walking through the whitelist, if the DEV_ALL item is found, no more check is needed. Right, because the DEV_ALL item always has all permissions.

 
153628834930_584460007999Chris R Jones
Andrew Morton wrote: On Tue, 07 Apr 2009 13:47:16 +0800 Li Zefan <lizf@xxxxxxxxxxxxxx wrote: While walking through the whitelist, if the DEV_ALL item is found, no more check is neede

 
129123664960_595260007559Chris R Jones
Andrew Morton wrote: On Tue, 07 Apr 2009 13:47:16 +0800 Li Zefan <lizf@xxxxxxxxxxxxxx wrote: While walking through the whitelist, if the DEV_ALL item is found, no more check is neede

 
190920474901_521060007757Serge E Hallyn
Quoting Chris R. Jones (chris@xxxxxxxxxxxxx): One more question for the experts: Is there any roadmap out there for when we can see containers support in kernels for the major distributions

 
157829474916_592360007541Serge E Hallyn
Quoting Chris R. Jones (chris@xxxxxxxxxxxxx): One more question for the experts: Is there any roadmap out there for when we can see containers support in kernels for the major distributions

 
168522174045_534060007523Serge E Hallyn
On s390, all tasks have READ_IMPLIES_EXEC set in current- personality, which causes the restart process to map things like the stack and heap as executable. During the restart process, remove this b

 
102925544406_595960007716Serge E Hallyn
On s390, all tasks have READ_IMPLIES_EXEC set in current- personality, which causes the restart process to map things like the stack and heap as executable. During the restart process, remove this b

 
195726884082_591760007037Oren Laadan
Serge E. Hallyn wrote: Quoting Dan Smith (danms@xxxxxxxxxx): On s390, all tasks have READ_IMPLIES_EXEC set in current- personality, which causes the restart process to map things like the s

 
147525484085_537660007507Oren Laadan
Serge E. Hallyn wrote: Quoting Dan Smith (danms@xxxxxxxxxx): On s390, all tasks have READ_IMPLIES_EXEC set in current- personality, which causes the restart process to map things like the s

 
113223354453_504860007406Oren Laadan
OL In fact, if elsewhere we restore current- personality of the task, OL then unless we move it to cr_read_mm(), it will overwrite it :( Should we move it or just remove RIE before we start the re

 
158929434623_563460007641Serge E Hallyn
Dan, Now after the rework of the patchset, its probably a good time to add support for this. Im unsure if the personality can affect other restore actions that take place elsewhere If so, probably

 
115723124194_556460007591Ryo Tsuruta
Ok, applied. Serge E. Hallyn wrote: Make x86 support depend on it (for now). Signed-off-by: Serge E. Hallyn <serue@xxxxxxxxxx --- arch/x86/Kconfig | 1 + 1 files changed, 1 ins

 
127922274279_536260007920Sukadev Bhattiprolu
Hi all, Im pleased to announce that the new dm-ioband RPM package (v1.12.0) has been released at: rel="nofollow" sourceforge.net/apps/trac/ioband/wiki/dm-ioband sourceforge.net/apps/trac/iob

 
140026204467_548660007225Sukadev Bhattiprolu
Suka, can you please post the entire test program so I can try to reproduce it here ? thanks, Oren. Sukadev Bhattiprolu wrote: Tried this with v14-rc2. This is probably not implemented yet...

 
199321274561_544660007819Sukadev Bhattiprolu
I just posted v14-rc3 which includes the c/r of restart-blocks. That should improve the situation. However, depending on which syscalls one uses, process may still seem "stuck" after rest

 
185227654762_547460007044Mark Ryden
Hi, Sukadev Bhattiprolu wrote: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | | I just posted v14-rc3 which includes the c/r of restart-blocks. | That should improve the situation. | | H

 
111525574356_530960007627Mark Ryden
On Wed, Apr 01, 2009 at 01:00:53PM +0300, Mark Ryden wrote: Hello, I am back to it and I just want to ask if there are any news with sysfs tagged directory support patch. Is it merged now ?

 
190124004854_518060007999Oren Laadan
Quoting Mark Ryden (markryde@xxxxxxxxx): Hello, I am sorry to hear that it is not merged yet.I hoped to try to start a project with network namespaces. Sysfs tagged directories are not support

 
109921624618_556760007613Serge E Hallyn
Checkpoint of sysvipc shared memory is performed in two steps: first, the entire ipc namespace is dumped as a whole by iterating through all shm objects and dumping the contents of each one. The shme

 
179226404741_535360007917Oren Laadan
Serge E. Hallyn wrote: Quoting Oren Laadan (orenl@xxxxxxxxxxxxxxx): ... int cr_write_ipc(struct cr_ctx *ctx, struct nsproxy *nsproxy) { - return 0; + return cr_write_ipc_shm(ctx,

 
117229384682_593460007081Oren Laadan
During restart, an ipc shared region may have SHM_DEST, indicating that it has been originally deleted (while still active). In this case the task of deleting the region after restoring it is postpon

 
197925274638_533460007759Oren Laadan
Quoting Oren Laadan (orenl@xxxxxxxxxxxxxxx): -int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size) +int +ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size, i

 
196227374159_581660007922Oren Laadan
Quoting Oren Laadan (orenl@xxxxxxxxxxxxxxx): Serge E. Hallyn wrote: Quoting Oren Laadan (orenl@xxxxxxxxxxxxxxx): -int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int si

 
181420154083_543160007732Oren Laadan
On Tue, Mar 31, 2009 at 01:32:31AM -0400, Oren Laadan wrote: Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx The description is empty and this patch is rather pointless without 7/7. Any reas

 
104323744371_578460007457Matt Helsley
Like chekcpoint, restart of sysvipc shared memory is also performed in two steps: first, the entire ipc namespace is restored as a whole, by restoring each shm object read from the checkpoint image.

 
170129004395_538260007807Dave Hansen
Add a interface to postpone an action until the end of the entire checkpoint or restart operation. This is useful when during the scan of tasks an operation cannot be performed in place, to avoid the

 
146328124333_510160007169Oren Laadan
Dave Hansen wrote: On Tue, 2009-03-31 at 01:32 -0400, Oren Laadan wrote: Add a interface to postpone an action until the end of the entire checkpoint or restart operation. This is useful whe

 
186121074906_501960007822Oren Laadan
These two are used in the next patch when calling vfs_read/write() Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx --- fs/read_write.c | 10 ---------- include/linux/fs.h | 10 ++++++++

 
194227364838_502560007420Serge E Hallyn
If ext2/3/4 is compiled as a kernel module, apply this patch to successfully compile this c/r patchset. Oren. diff --git a/checkpoint/ckpt_file.c b/checkpoint/ckpt_file.c index 0fe68bf..df6bb3d 10

 
175722104794_512860007521Oren Laadan
A minor comment and a nit. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From d832bfba9a50789fbfadf8486fbdfbd8b498a9ea Mon Sep 17 00:00:00 2001 | From: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx | Date

 
158526954420_598160007254Oren Laadan
A minor comment and a nit. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From d832bfba9a50789fbfadf8486fbdfbd8b498a9ea Mon Sep 17 00:00:00 2001 | From: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx | Date

 
178725404065_511960007211Oren Laadan
Infrastructure to handle objects that may be shared and referenced by multiple tasks or other objects, e..g open files, memory address space etc. The state of shared objects is saved once. On the fi

 
128825024319_519460007242Oren Laadan
Infrastructure to handle objects that may be shared and referenced by multiple tasks or other objects, e..g open files, memory address space etc. The state of shared objects is saved once. On the fi

 
101624644978_585460007144Oren Laadan
Create trivial sys_checkpoint and sys_restore system calls. They will enable to checkpoint and restart an entire container, to and from a checkpoint image file descriptor. The syscalls take a file d

 
127322454355_506760007349Oren Laadan
Create trivial sys_checkpoint and sys_restore system calls. They will enable to checkpoint and restart an entire container, to and from a checkpoint image file descriptor. The syscalls take a file d

 
158829594044_500860007120Oren Laadan
Minor comment: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 26e7a012d3ff04d64a59e629f2427dfa2b49792b Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar

 
126227264661_532860007302Oren Laadan
Minor comment: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 26e7a012d3ff04d64a59e629f2427dfa2b49792b Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar

 
154021334805_585960007326Oren Laadan
A few minor comments. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 6f0a1dc1db8fdac766b00f90e04e06a5827af459 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon,

 
110023444790_507860007278Oren Laadan
A few minor comments. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 6f0a1dc1db8fdac766b00f90e04e06a5827af459 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon,

 
122324714524_557860007898Oren Laadan
Just a nit: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 6f5483b085b1fb675a8445c65ddbeb7b38187865 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar 2

 
192821274857_597260007795Oren Laadan
Just a nit: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 6f5483b085b1fb675a8445c65ddbeb7b38187865 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar 2

 
109223984520_575360007365Oren Laadan
One comment below. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From eed3f074ed035c93eb49d05cc1491ee680956906 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30

 
105522664499_586060007827Oren Laadan
From: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx This marks ext[234] as being checkpointable. There will be many more to do this to, but this is a start. Signed-off-by: Dave Hansen <dave@xxxxxxxx

 
118522254170_597660007368Oren Laadan
Couple of nits: Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From f5dec38baa6a2cc2a88783db3a9afd676821d293 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar

 
125425274840_577860007378Oren Laadan
Minor comment. Oren Laadan [orenl@xxxxxxxxxxxxxxx] wrote: | From 7bb32901eb8cefba38bd06bea8a1630ac0dd5051 Mon Sep 17 00:00:00 2001 | From: Oren Laadan <orenl@xxxxxxxxxxxxxxx | Date: Mon, 30 Mar

 
167620324505_553260007641Serge E Hallyn
A pipe is essentially a double-headed inode with a buffer attached to it. We checkpoint the pipe buffer only once, as soon as we hit one side of the pipe, regardless whether it is read- or write- end

 

 

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