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commit 8a031aa88271ac44e5574c15d82c21af98855876
Author: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>
Date: Thu Jun 25 12:51:25 2009 -0700
c/r: better file error debugging
This should give a nice message with symbol names for when we have an
open file that doesn't have an f_op->checkpoint.
Something along the lines of:
[1133:c/r:checkpoint_file] file operations have no checkpoint handler:tty_open+0x0/0x24
Also add a debug message when hitting an unlinked file.
Based on a patch by Dave Hansen.
Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
commit 27099c13bee4a24d4f79f8911d71bc99ddde95d3
Author: Serge E. Hallyn <serue@xxxxxxxxxx>
Date: Fri Jun 26 15:06:43 2009 -0400
cr: define CKPT_ARCH_NSIG for s390
Also add a check for x86 and s390 in the hopes of catching any
changes to NSIG which don't update CKPT_ARCH_NSIG.
Signed-off-by: Serge E. Hallyn <serue@xxxxxxxxxx>
Acked-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
commit fcb7a17df8c1b42346aab9fd5dd1af27beee2b39
Author: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
Date: Thu Jun 25 05:06:06 2009 -0400
c/r: tighten ptrace checking for checkpoint to PTRACE_MODE_ATTACH
Security modules distinguish reading of process state (via proc) from
full ptrace access using the access mode: PTRACE_MODE_{READ,ATTACH}.
Read access to /proc/pid/mem requires a full ptrace attach (for more
details, see: http://lwn.net/Articles/282930/).
Checkpoint needs access to full process state, including memory, so
we require PTRACE_MODE_ATTACH.
Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
arch/s390/include/asm/checkpoint_hdr.h | 8 ++++++++
arch/x86/include/asm/checkpoint_hdr.h | 6 ++++++
checkpoint/checkpoint.c | 2 +-
checkpoint/files.c | 8 ++++++--
4 files changed, 21 insertions(+), 3 deletions(-)
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