Hi Nadav, On 3/7/22 19:48, Nadav Amit wrote: > From: Nadav Amit <namit@xxxxxxxxxx> > > A bug in the kernel caused in recent version a different output (masked > offset). Update the output of the demo program accordingly. I'd like to have some more information about this in the commit message. I don't really understand it. When was the bug introduced? When was it fixed? Was the example in the page created in a buggy version? Thanks, Alex > > Signed-off-by: Nadav Amit <namit@xxxxxxxxxx> > --- > man2/userfaultfd.2 | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/man2/userfaultfd.2 b/man2/userfaultfd.2 > index cee7c01d2..779ff8817 100644 > --- a/man2/userfaultfd.2 > +++ b/man2/userfaultfd.2 > @@ -648,7 +648,7 @@ Address returned by mmap() = 0x7fd30106c000 > > fault_handler_thread(): > poll() returns: nready = 1; POLLIN = 1; POLLERR = 0 > - UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106c00f > + UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106c000 > (uffdio_copy.copy returned 4096) > Read address 0x7fd30106c00f in main(): A > Read address 0x7fd30106c40f in main(): A > @@ -657,7 +657,7 @@ Read address 0x7fd30106cc0f in main(): A > > fault_handler_thread(): > poll() returns: nready = 1; POLLIN = 1; POLLERR = 0 > - UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106d00f > + UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106d000 > (uffdio_copy.copy returned 4096) > Read address 0x7fd30106d00f in main(): B > Read address 0x7fd30106d40f in main(): B > @@ -666,7 +666,7 @@ Read address 0x7fd30106dc0f in main(): B > > fault_handler_thread(): > poll() returns: nready = 1; POLLIN = 1; POLLERR = 0 > - UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106e00f > + UFFD_EVENT_PAGEFAULT event: flags = 0; address = 7fd30106e000 > (uffdio_copy.copy returned 4096) > Read address 0x7fd30106e00f in main(): C > Read address 0x7fd30106e40f in main(): C -- <http://www.alejandro-colomar.es/> GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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