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a=ed25519-sha256; t=1781598606; l=1025; i=andrea.cervesato@suse.com; s=20251210; h=from:subject:message-id; bh=zo3kdVLxDfgKpl11YnlY8vZQSPSf3mlkJMfRuNM4GFI=; b=wKwdlj3PWPHOHT6cDu8CkN/kOMKN0eusM7+dO+tQB7QGTnBCXG9ManS1Aoz/LjyJrOeC0xudx /x45JUz1nq4BZKFiQBtXyiHBZaWjJbiEU8gv4tDL9XW/w7YYSzMNWMU X-Developer-Key: i=andrea.cervesato@suse.com; a=ed25519; pk=zKY+6GCauOiuHNZ//d8PQ/UL4jFCTKbXrzXAOQSLevI= X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.995]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_DN_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:email, suse.com:mid, imap1.dmz-prg2.suse.org:helo] X-Virus-Scanned: clamav-milter 1.0.9 at in-5.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v2 2/2] tst_cgroup: tolerate ESRCH in cgroup_drain() 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" From: Andrea Cervesato A process can die between reading cgroup.procs and writing its PID to the destination cgroup. When this happens, the kernel returns ESRCH which is a normal race condition, not a test infrastructure failure. Skip ESRCH errors instead of aborting with TBROK. Signed-off-by: Andrea Cervesato --- lib/tst_cgroup.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/lib/tst_cgroup.c b/lib/tst_cgroup.c index a37bf1516aabfbcb9a02fedd6fddb98e85ecc653..f548c0e01cf60803ad4c1e898e7ec2d39dc33c84 100644 --- a/lib/tst_cgroup.c +++ b/lib/tst_cgroup.c @@ -974,8 +974,12 @@ static void cgroup_drain(const enum tst_cg_ver ver, for (tok = strtok(pid_list, "\n"); tok; tok = strtok(NULL, "\n")) { ret = dprintf(fd, "%s", tok); - if (ret < (ssize_t)strlen(tok)) + if (ret < (ssize_t)strlen(tok)) { + if (ret < 0 && errno == ESRCH) + continue; + tst_brk(TBROK | TERRNO, "Failed to drain %s", tok); + } } SAFE_CLOSE(fd); } -- 2.51.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp