* [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail
@ 2023-10-19 8:51 Jan Stancek
2023-10-19 8:58 ` Andrea Cervesato via ltp
0 siblings, 1 reply; 5+ messages in thread
From: Jan Stancek @ 2023-10-19 8:51 UTC (permalink / raw)
To: ltp
smaps matching can prematurely end, because the comparison to "VmFlags"
string is not exact. So depending on address on line, it can break
before it finds Swap line. This makes the test fail on recent aarch64
kernels.
min_swap_avail per documentation is in MB not KB.
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
testcases/kernel/syscalls/process_madvise/process_madvise.h | 2 +-
testcases/kernel/syscalls/process_madvise/process_madvise01.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise.h b/testcases/kernel/syscalls/process_madvise/process_madvise.h
index c4570e5309de..5b227ada099e 100644
--- a/testcases/kernel/syscalls/process_madvise/process_madvise.h
+++ b/testcases/kernel/syscalls/process_madvise/process_madvise.h
@@ -54,7 +54,7 @@ static inline void read_address_mapping(unsigned long address, struct addr_mappi
if (!found)
continue;
- if (found && strcmp(line, "VmFlags") >= 0)
+ if (found && strncmp(line, "VmFlags", 7) == 0)
break;
if (sscanf(line, "%31[^:]: %d", label, &value) > 0) {
diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise01.c b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
index 322b4cf60353..0fd3c1ef4f80 100644
--- a/testcases/kernel/syscalls/process_madvise/process_madvise01.c
+++ b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
@@ -123,7 +123,7 @@ static struct tst_test test = {
.min_kver = "5.10",
.needs_checkpoints = 1,
.needs_root = 1,
- .min_swap_avail = MEM_CHILD / TST_KB,
+ .min_swap_avail = MEM_CHILD / TST_MB,
.needs_kconfigs = (const char *[]) {
"CONFIG_SWAP=y",
NULL
--
2.31.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail
2023-10-19 8:51 [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail Jan Stancek
@ 2023-10-19 8:58 ` Andrea Cervesato via ltp
2023-10-27 8:50 ` Jan Stancek
0 siblings, 1 reply; 5+ messages in thread
From: Andrea Cervesato via ltp @ 2023-10-19 8:58 UTC (permalink / raw)
To: ltp
Hi!
On 10/19/23 10:51, Jan Stancek wrote:
> smaps matching can prematurely end, because the comparison to "VmFlags"
> string is not exact. So depending on address on line, it can break
> before it finds Swap line. This makes the test fail on recent aarch64
> kernels.
>
> min_swap_avail per documentation is in MB not KB.
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
> ---
> testcases/kernel/syscalls/process_madvise/process_madvise.h | 2 +-
> testcases/kernel/syscalls/process_madvise/process_madvise01.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise.h b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> index c4570e5309de..5b227ada099e 100644
> --- a/testcases/kernel/syscalls/process_madvise/process_madvise.h
> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> @@ -54,7 +54,7 @@ static inline void read_address_mapping(unsigned long address, struct addr_mappi
> if (!found)
> continue;
>
> - if (found && strcmp(line, "VmFlags") >= 0)
> + if (found && strncmp(line, "VmFlags", 7) == 0)
> break;
>
> if (sscanf(line, "%31[^:]: %d", label, &value) > 0) {
> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise01.c b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> index 322b4cf60353..0fd3c1ef4f80 100644
> --- a/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> @@ -123,7 +123,7 @@ static struct tst_test test = {
> .min_kver = "5.10",
> .needs_checkpoints = 1,
> .needs_root = 1,
> - .min_swap_avail = MEM_CHILD / TST_KB,
> + .min_swap_avail = MEM_CHILD / TST_MB,
> .needs_kconfigs = (const char *[]) {
> "CONFIG_SWAP=y",
> NULL
Thanks for fixing this.
Andrea Cervesato
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail
2023-10-19 8:58 ` Andrea Cervesato via ltp
@ 2023-10-27 8:50 ` Jan Stancek
2023-10-27 8:55 ` Andrea Cervesato via ltp
0 siblings, 1 reply; 5+ messages in thread
From: Jan Stancek @ 2023-10-27 8:50 UTC (permalink / raw)
To: Andrea Cervesato; +Cc: ltp
On Thu, Oct 19, 2023 at 10:58 AM Andrea Cervesato via ltp
<ltp@lists.linux.it> wrote:
>
> Hi!
>
> On 10/19/23 10:51, Jan Stancek wrote:
> > smaps matching can prematurely end, because the comparison to "VmFlags"
> > string is not exact. So depending on address on line, it can break
> > before it finds Swap line. This makes the test fail on recent aarch64
> > kernels.
> >
> > min_swap_avail per documentation is in MB not KB.
> >
> > Signed-off-by: Jan Stancek <jstancek@redhat.com>
> > ---
> > testcases/kernel/syscalls/process_madvise/process_madvise.h | 2 +-
> > testcases/kernel/syscalls/process_madvise/process_madvise01.c | 2 +-
> > 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise.h b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> > index c4570e5309de..5b227ada099e 100644
> > --- a/testcases/kernel/syscalls/process_madvise/process_madvise.h
> > +++ b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> > @@ -54,7 +54,7 @@ static inline void read_address_mapping(unsigned long address, struct addr_mappi
> > if (!found)
> > continue;
> >
> > - if (found && strcmp(line, "VmFlags") >= 0)
> > + if (found && strncmp(line, "VmFlags", 7) == 0)
> > break;
> >
> > if (sscanf(line, "%31[^:]: %d", label, &value) > 0) {
> > diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise01.c b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> > index 322b4cf60353..0fd3c1ef4f80 100644
> > --- a/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> > +++ b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> > @@ -123,7 +123,7 @@ static struct tst_test test = {
> > .min_kver = "5.10",
> > .needs_checkpoints = 1,
> > .needs_root = 1,
> > - .min_swap_avail = MEM_CHILD / TST_KB,
> > + .min_swap_avail = MEM_CHILD / TST_MB,
> > .needs_kconfigs = (const char *[]) {
> > "CONFIG_SWAP=y",
> > NULL
>
> Thanks for fixing this.
Could I add your Reviewed/Acked-by to the patch?
>
> Andrea Cervesato
>
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
>
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail
2023-10-27 8:50 ` Jan Stancek
@ 2023-10-27 8:55 ` Andrea Cervesato via ltp
2023-10-27 9:49 ` Jan Stancek
0 siblings, 1 reply; 5+ messages in thread
From: Andrea Cervesato via ltp @ 2023-10-27 8:55 UTC (permalink / raw)
To: Jan Stancek; +Cc: ltp
Hi,
On 10/27/23 10:50, Jan Stancek wrote:
> On Thu, Oct 19, 2023 at 10:58 AM Andrea Cervesato via ltp
> <ltp@lists.linux.it> wrote:
>> Hi!
>>
>> On 10/19/23 10:51, Jan Stancek wrote:
>>> smaps matching can prematurely end, because the comparison to "VmFlags"
>>> string is not exact. So depending on address on line, it can break
>>> before it finds Swap line. This makes the test fail on recent aarch64
>>> kernels.
>>>
>>> min_swap_avail per documentation is in MB not KB.
>>>
>>> Signed-off-by: Jan Stancek <jstancek@redhat.com>
>>> ---
>>> testcases/kernel/syscalls/process_madvise/process_madvise.h | 2 +-
>>> testcases/kernel/syscalls/process_madvise/process_madvise01.c | 2 +-
>>> 2 files changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise.h b/testcases/kernel/syscalls/process_madvise/process_madvise.h
>>> index c4570e5309de..5b227ada099e 100644
>>> --- a/testcases/kernel/syscalls/process_madvise/process_madvise.h
>>> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise.h
>>> @@ -54,7 +54,7 @@ static inline void read_address_mapping(unsigned long address, struct addr_mappi
>>> if (!found)
>>> continue;
>>>
>>> - if (found && strcmp(line, "VmFlags") >= 0)
>>> + if (found && strncmp(line, "VmFlags", 7) == 0)
>>> break;
>>>
>>> if (sscanf(line, "%31[^:]: %d", label, &value) > 0) {
>>> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise01.c b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
>>> index 322b4cf60353..0fd3c1ef4f80 100644
>>> --- a/testcases/kernel/syscalls/process_madvise/process_madvise01.c
>>> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
>>> @@ -123,7 +123,7 @@ static struct tst_test test = {
>>> .min_kver = "5.10",
>>> .needs_checkpoints = 1,
>>> .needs_root = 1,
>>> - .min_swap_avail = MEM_CHILD / TST_KB,
>>> + .min_swap_avail = MEM_CHILD / TST_MB,
>>> .needs_kconfigs = (const char *[]) {
>>> "CONFIG_SWAP=y",
>>> NULL
>> Thanks for fixing this.
> Could I add your Reviewed/Acked-by to the patch?
Yes please.
Acked-by: Andrea Cervesato <andrea.cervesato@mailbox.org>
>
>> Andrea Cervesato
>>
>>
>> --
>> Mailing list info: https://lists.linux.it/listinfo/ltp
>>
Andrea Cervesato
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail
2023-10-27 8:55 ` Andrea Cervesato via ltp
@ 2023-10-27 9:49 ` Jan Stancek
0 siblings, 0 replies; 5+ messages in thread
From: Jan Stancek @ 2023-10-27 9:49 UTC (permalink / raw)
To: Andrea Cervesato; +Cc: ltp
On Fri, Oct 27, 2023 at 10:55 AM Andrea Cervesato
<andrea.cervesato@suse.com> wrote:
>
> Hi,
>
> On 10/27/23 10:50, Jan Stancek wrote:
> > On Thu, Oct 19, 2023 at 10:58 AM Andrea Cervesato via ltp
> > <ltp@lists.linux.it> wrote:
> >> Hi!
> >>
> >> On 10/19/23 10:51, Jan Stancek wrote:
> >>> smaps matching can prematurely end, because the comparison to "VmFlags"
> >>> string is not exact. So depending on address on line, it can break
> >>> before it finds Swap line. This makes the test fail on recent aarch64
> >>> kernels.
> >>>
> >>> min_swap_avail per documentation is in MB not KB.
> >>>
> >>> Signed-off-by: Jan Stancek <jstancek@redhat.com>
> >>> ---
> >>> testcases/kernel/syscalls/process_madvise/process_madvise.h | 2 +-
> >>> testcases/kernel/syscalls/process_madvise/process_madvise01.c | 2 +-
> >>> 2 files changed, 2 insertions(+), 2 deletions(-)
> >>>
> >>> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise.h b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> >>> index c4570e5309de..5b227ada099e 100644
> >>> --- a/testcases/kernel/syscalls/process_madvise/process_madvise.h
> >>> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise.h
> >>> @@ -54,7 +54,7 @@ static inline void read_address_mapping(unsigned long address, struct addr_mappi
> >>> if (!found)
> >>> continue;
> >>>
> >>> - if (found && strcmp(line, "VmFlags") >= 0)
> >>> + if (found && strncmp(line, "VmFlags", 7) == 0)
> >>> break;
> >>>
> >>> if (sscanf(line, "%31[^:]: %d", label, &value) > 0) {
> >>> diff --git a/testcases/kernel/syscalls/process_madvise/process_madvise01.c b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> >>> index 322b4cf60353..0fd3c1ef4f80 100644
> >>> --- a/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> >>> +++ b/testcases/kernel/syscalls/process_madvise/process_madvise01.c
> >>> @@ -123,7 +123,7 @@ static struct tst_test test = {
> >>> .min_kver = "5.10",
> >>> .needs_checkpoints = 1,
> >>> .needs_root = 1,
> >>> - .min_swap_avail = MEM_CHILD / TST_KB,
> >>> + .min_swap_avail = MEM_CHILD / TST_MB,
> >>> .needs_kconfigs = (const char *[]) {
> >>> "CONFIG_SWAP=y",
> >>> NULL
> >> Thanks for fixing this.
> > Could I add your Reviewed/Acked-by to the patch?
>
> Yes please.
>
> Acked-by: Andrea Cervesato <andrea.cervesato@mailbox.org>
Pushed.
> >
> >> Andrea Cervesato
> >>
> >>
> >> --
> >> Mailing list info: https://lists.linux.it/listinfo/ltp
> >>
> Andrea Cervesato
>
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-10-27 9:49 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-10-19 8:51 [LTP] [PATCH] syscalls/process_madvise01: fix smaps scan and min_swap_avail Jan Stancek
2023-10-19 8:58 ` Andrea Cervesato via ltp
2023-10-27 8:50 ` Jan Stancek
2023-10-27 8:55 ` Andrea Cervesato via ltp
2023-10-27 9:49 ` Jan Stancek
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.