diff options
| author | Chandra Seetharaman <[email protected]> | 2006-07-30 03:03:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2006-07-31 13:28:36 -0700 |
| commit | 822cfbff2ef49a08d1b9618d50f81b475d4f936c (patch) | |
| tree | 9b8bd37b3940410a13d0c439cc585d5aea1147ac /scripts/patch-kernel | |
| parent | 2ccb48ebb4de139eef4fcefd5f2bb823cb0d81b9 (diff) | |
[PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp
Events sent by Process Events Connector from a 64-bit kernel are not binary
compatible with a 32-bit userspace program because the "timestamp" field
(struct timespec) is not arch independent. This affects the fields that
follow "timestamp" as they will be be off by 8 bytes.
This is a problem for 32-bit userspace programs running with 64-bit kernels
on ppc64, s390, x86-64.. any "biarch" system.
Matt had submitted a different solution to lkml as an RFC earlier. We have
since switched to a solution recommended by Evgeniy Polyakov.
This patch fixes the problem by changing the timestamp to be a __u64, which
stores the number of nanoseconds.
Tested on a x86_64 system with both 32 bit application and 64 bit
application and on a i386 system.
Signed-off-by: Chandra Seetharaman <[email protected]>
Signed-off-by: Matt Helsley <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: Guillaume Thouvenin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions