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Tue, 21 Sep 2021 22:03:44 -0700 (PDT) X-Google-Smtp-Source: ABdhPJywv0YQU1JDLN2h9S1um+pYkeQF6jwrXRZ/uFZkwa1txuCQV7ELOGvP8IzWEH8JsEMXqKcfhHcgd4dWGeHAzHY= X-Received: by 2002:a25:2f48:: with SMTP id v69mr41041377ybv.339.1632287024499; Tue, 21 Sep 2021 22:03:44 -0700 (PDT) MIME-Version: 1.0 References: <20210817104625.2559362-1-liwang@redhat.com> <20210921203349.GA2014441@maple.netwinder.org> In-Reply-To: <20210921203349.GA2014441@maple.netwinder.org> From: Li Wang Date: Wed, 22 Sep 2021 13:03:32 +0800 Message-ID: To: Ralph Siemsen Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=liwan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Virus-Scanned: clamav-milter 0.102.4 at in-3.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: LTP List Content-Type: multipart/mixed; boundary="===============1451723575==" Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" --===============1451723575== Content-Type: multipart/alternative; boundary="0000000000004463a505cc8e7047" --0000000000004463a505cc8e7047 Content-Type: text/plain; charset="UTF-8" Hi Ralph, On Wed, Sep 22, 2021 at 4:34 AM Ralph Siemsen wrote: > Hello, > > On Tue, Aug 17, 2021 at 06:46:25PM +0800, Li Wang wrote: > > > >diff --git a/testcases/kernel/syscalls/fallocate/fallocate05.c > b/testcases/kernel/syscalls/fallocate/fallocate05.c > >index 55ec1aee4..74bfa4861 100644 > >--- a/testcases/kernel/syscalls/fallocate/fallocate05.c > >+++ b/testcases/kernel/syscalls/fallocate/fallocate05.c > >@@ -26,8 +26,8 @@ > > #include "lapi/fallocate.h" > > > > #define MNTPOINT "mntpoint" > >-#define FALLOCATE_BLOCKS 16 > >-#define DEALLOCATE_BLOCKS 4 > >+#define FALLOCATE_BLOCKS 256 > >+#define DEALLOCATE_BLOCKS 64 > > #define TESTED_FLAGS "fallocate(FALLOC_FL_PUNCH_HOLE | > FALLOC_FL_KEEP_SIZE)" > > > > static char *buf; > > This change appears seems to be causing fallocate05 test to reliably > trigger OOM (out of memory) on my test machine, which has only 256MB > RAM. > Thanks for reporting the failure. We purposely increase the size of fallocate to reduce interference from metadata changing. But not clear how much size should be a proper value for a small system. Can you try with decrease the number of FALLOCATE_BLOCKS? i.e. #define FALLOCATE_BLOCKS 64 #define DEALLOCATE_BLOCKS 16 Or, what about other multiple sizes, test result? -- Regards, Li Wang --0000000000004463a505cc8e7047 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Ralph,

On Wed, Sep 22, 2021 at 4:34 AM Ralph Siemsen= <ralph.siemsen@linaro.org> wrote:
He= llo,

On Tue, Aug 17, 2021 at 06:46:25PM +0800, Li Wang wrote:
>
>diff --git a/testcases/kernel/syscalls/fallocate/fallocate05.c b/testca= ses/kernel/syscalls/fallocate/fallocate05.c
>index 55ec1aee4..74bfa4861 100644
>--- a/testcases/kernel/syscalls/fallocate/fallocate05.c
>+++ b/testcases/kernel/syscalls/fallocate/fallocate05.c
>@@ -26,8 +26,8 @@
> #include "lapi/fallocate.h"
>
> #define MNTPOINT "mntpoint"
>-#define FALLOCATE_BLOCKS 16
>-#define DEALLOCATE_BLOCKS 4
>+#define= FALLOCATE_B= LOCKS 256
>+#define DEALLOCATE_BLOCKS 64
> #define TESTED_FLAGS "fallocate(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_= KEEP_SIZE)"
>
> static char *buf;

This change appears seems to be causing fallocate05 test to reliably
trigger OOM (out of memory) on my test machine, which has only 256MB
RAM.



--
Regards,
Li Wang
=
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