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Fri, 09 Aug 2024 10:32:01 +0000 Date: Fri, 9 Aug 2024 12:31:55 +0200 From: Petr Vorel To: "Xinjian Ma (Fujitsu)" Message-ID: <20240809103155.GA352642@pevik> References: <20240809073010.793324-1-maxj.fnst@fujitsu.com> <20240809084527.GA337675@pevik> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Spamd-Result: default: False [-0.50 / 50.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_RHS_NOT_FQDN(0.50)[]; HAS_REPLYTO(0.30)[pvorel@suse.cz]; NEURAL_HAM_SHORT(-0.20)[-0.998]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MISSING_XM_UA(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_EQ_ADDR_SOME(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; RCPT_COUNT_THREE(0.00)[3]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[fujitsu.com:email,imap1.dmz-prg2.suse.org:helo,cgroup_fj_function.sh:url]; REPLYTO_EQ_FROM(0.00)[] X-Virus-Scanned: clamav-milter 1.0.3 at in-5.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH v2] cgroup_fj_common.sh: Do not disable systemd related cgroup subsystems 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: , Reply-To: Petr Vorel Cc: "ltp@lists.linux.it" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" > > Hi Ma, > > > The cpu, io, memory, and pids subsystems under the root cgroup cannot > > > be disabled because they are used for systemd. Currently, the test of > > > cpu and memory subsystems in cgroup_fj_function.sh and > > > cgroup_fj_stress.sh will report the error > > > "echo: write error: device or resource busy". > > Could you please share a bit of info on which system it fails. Do you use cgroup > > v1? > Hi Petr > It fails on Fedora 37 which uses cgroupv2. > cgroupv1 won't trigger this failure. OK, thx for info, merged! I managed to reproduce the same issue also on Debian trixie or some Alpine (which don't use systemd). I still wonder what could be the root cause, because many other systemd based systems have no problem (various SLES versions and openSUSE Tumbleweed). Kind regards, Petr > > Kind regards, > > Petr > > > Reviewed-by: Petr Vorel > > > Signed-off-by: Ma Xinjian > > > --- > > > .../kernel/controllers/cgroup_fj/cgroup_fj_common.sh | 8 +++++++- > > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > diff --git > > > a/testcases/kernel/controllers/cgroup_fj/cgroup_fj_common.sh > > > b/testcases/kernel/controllers/cgroup_fj/cgroup_fj_common.sh > > > index e866641ba..153d351d7 100755 > > > --- a/testcases/kernel/controllers/cgroup_fj/cgroup_fj_common.sh > > > +++ b/testcases/kernel/controllers/cgroup_fj/cgroup_fj_common.sh > > > @@ -77,7 +77,13 @@ common_cleanup() > > > cgroup_cleanup > > > - [ "$cgroup_version" = "2" ] && ROD echo "-$subsystem" \> > > "/sys/fs/cgroup/cgroup.subtree_control" > > > + if [ "$cgroup_version" = "2" ]; then > > > + case "$subsystem" in > > > + cpu|io|memory|pids) > > > + :;; > > > + *) ROD echo "-$subsystem" \> > > "/sys/fs/cgroup/cgroup.subtree_control";; > > > + esac > > > + fi > > > } > > > . cgroup_lib.sh -- Mailing list info: https://lists.linux.it/listinfo/ltp