diff options
| -rw-r--r-- | man2/prctl.2 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/man2/prctl.2 b/man2/prctl.2 index 44ec6573c5..19b9789f84 100644 --- a/man2/prctl.2 +++ b/man2/prctl.2 @@ -988,7 +988,10 @@ flag, in the location pointed to by .IR "(int\ **)\ arg2" . This feature is available only if the kernel is built with the .BR CONFIG_CHECKPOINT_RESTORE -option enabled. +option enabled. Note that since the prctl() syscall does not have compat +implementation for AMD64 x32 and MIPS n32 ABIs, and the kernel writes out +pointer of kernel's pointer size, this operation expects a user space buffer +of 8 (not 4) bytes on these ABIs. .TP .BR PR_SET_TIMERSLACK " (since Linux 2.6.28)" .\" See https://lwn.net/Articles/369549/ |