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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	rcu@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 046/217] torture: Prevent jitter processes from delaying failed run
Date: Tue, 22 Dec 2020 21:13:35 -0500	[thread overview]
Message-ID: <20201223021626.2790791-46-sashal@kernel.org> (raw)
In-Reply-To: <20201223021626.2790791-1-sashal@kernel.org>

From: "Paul E. McKenney" <paulmck@kernel.org>

[ Upstream commit c64659ef29e3901be0900ec6fb0485fa3dbdcfd8 ]

Even when the kernel panics and qemu dies, runs with jitter enabled will
continue uselessly until the jitter.sh processes terminate.  This can
be annoying if a planned one-hour run instead dies during boot.

This commit therefore kills the jitter.sh processes when the run ends
more than one minute prior to the termination time specified by the
kvm.sh --duration argument or its default.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/rcutorture/bin/kvm-test-1-run.sh     | 14 ++++++++++++++
 tools/testing/selftests/rcutorture/bin/kvm.sh      |  5 ++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 6dc2b49b85ea0..6544a289a5832 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -223,6 +223,20 @@ do
 				echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
 				ps -fp $killpid >> $resdir/Warnings 2>&1
 			fi
+			# Reduce probability of PID reuse by allowing a one-minute buffer
+			if test $((kruntime + 60)) -lt $seconds && test -s "$resdir/../jitter_pids"
+			then
+				awk < "$resdir/../jitter_pids" '
+				NF > 0 {
+					pidlist = pidlist " " $1;
+					n++;
+				}
+				END {
+					if (n > 0) {
+						print "kill " pidlist;
+					}
+				}' | sh
+			fi
 		else
 			echo ' ---' `date`: "Kernel done"
 		fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 6eb1d3f6524d5..5ad3882563ce6 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -459,8 +459,11 @@ function dump(first, pastlast, batchnum)
 	print "if test -n \"$needqemurun\""
 	print "then"
 	print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
-	for (j = 0; j < njitter; j++)
+	print "\techo > " rd "jitter_pids"
+	for (j = 0; j < njitter; j++) {
 		print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
+		print "\techo $! >> " rd "jitter_pids"
+	}
 	print "\twait"
 	print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
 	print "else"
-- 
2.27.0


  parent reply	other threads:[~2020-12-23  3:09 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-23  2:12 [PATCH AUTOSEL 5.10 001/217] soc: aspeed-lpc-ctrl: Fail probe of lpc-ctrl if reserved memory is not aligned Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 002/217] drm/ingenic: Reset pixclock rate when parent clock rate changes Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 003/217] drm/bridge: ti-sn65dsi86: Add retries for link training Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 004/217] drm/amd/display: setup system context in dm_init Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 005/217] drm/amd/display: Fix the display corruption issue on Navi10 Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 006/217] locks: Fix UBSAN undefined behaviour in flock64_to_posix_lock Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 007/217] platform/x86: asus-wmi: Add support for SW_TABLET_MODE on UX360 Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 008/217] tomoyo: fix clang pointer arithmetic warning Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 009/217] HID: hid-input: occasionally report stylus battery even if not changed Sasha Levin
2020-12-23  2:12 ` [PATCH AUTOSEL 5.10 010/217] drm/amdgpu: change to save bad pages in UMC error interrupt callback Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 011/217] crypto: omap-aes - fix the reference count leak of omap device Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 012/217] drm/amd/display: Do not silently accept DCC for multiplane formats Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 013/217] ASoC: intel: sof_rt5682: Add quirk for Dooly Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 014/217] bpf: Use separate lockdep class for each hashtab Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 015/217] drm/msm: Fix race condition in msm driver with async layer updates Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 016/217] staging: wimax: depends on NET Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 017/217] RDMA/siw: Fix typo of EAGAIN not -EAGAIN in siw_cm_work_handler() Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 018/217] drm/amd/display: Fix compilation error Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 019/217] drm/amd/display: Force prefetch mode to 0 Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 020/217] drm/amd/display: Keep GSL for full updates with planes that flip VSYNC Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 021/217] drm/amd/display: stop top_mgr when type change to non-MST during s3 Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 022/217] drm/amd/display: correct eDP T9 delay Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 023/217] drm/amd/display: Update connector on DSC property change Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 024/217] drm/amd/display: fix recout calculation for left side clip Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 025/217] drm/amdgpu: disable gfxoff if VCN is busy Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 026/217] net: ethernet: ti: am65-cpsw: fix tx csum offload for multi mac mode Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 027/217] net: mscc: ocelot: don't reset the pvid to 0 when deleting it Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 028/217] drm/amdgpu: set LDS_CONFIG=0x20 on Navy Flounder to fix a GPU hang (v2) Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 029/217] scsi: target: Fix cmd_count ref leak Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 030/217] scsi: pm80xx: Make mpi_build_cmd locking consistent Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 031/217] scsi: pm80xx: Make running_req atomic Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 032/217] scsi: pm80xx: Avoid busywait in FW ready check Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 033/217] scsi: pm80xx: Fix pm8001_mpi_get_nvmd_resp() race condition Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 034/217] scsi: ufs: Allow an error return value from ->device_reset() Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 035/217] fcntl: Fix potential deadlock in send_sig{io, urg}() Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 036/217] drm/amdgpu: add missing clock gating info in amdgpu_pm_info Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 037/217] mac80211: don't overwrite QoS TID of injected frames Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 038/217] staging: ks7010: fix missing destroy_workqueue() on error in ks7010_sdio_probe Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 039/217] staging: rtl8192u: fix wrong judgement in rtl8192_rx_isr Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 040/217] mips: ar7: add missing iounmap() on error in ar7_gpio_init Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 041/217] mips: cm: add missing iounmap() on error in mips_cm_probe() Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 042/217] usb: typec: ucsi: Work around PPM losing change information Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 043/217] rcuscale: Prevent hangs for invalid arguments Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 044/217] refscale: " Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 045/217] locktorture: " Sasha Levin
2020-12-23  2:13 ` Sasha Levin [this message]
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 047/217] rcutorture: " Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 048/217] kcsan: Fix encoding masks and regain address bit Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 049/217] ath10k: fix compilation warning Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 050/217] rsi: Fix TX EAPOL packet handling against iwlwifi AP Sasha Levin
2021-03-02 19:25   ` Marek Vasut
2021-03-04 20:47     ` Sasha Levin
2021-03-04 21:07       ` Marek Vasut
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 051/217] thermal: intel: pch: fix S0ix failure due to PCH temperature above threshold Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 052/217] drm: panel: simple: add missing platform_driver_unregister() in panel_simple_init Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 053/217] drm/bridge: lvds-codec: Use dev_err_probe for error handling Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 054/217] drm/ast: Fixed 1920x1080 sync. polarity issue Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 055/217] s390: make sure vmemmap is top region table entry aligned Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 056/217] s390/pci: remove races against pte updates Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 057/217] s390/trng: set quality to 1024 Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 058/217] Bluetooth: btqca: Add valid le states quirk Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 059/217] Bluetooth: Resume advertising after LE connection Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 060/217] Bluetooth: Move force_bredr_smp debugfs into hci_debugfs_create_bredr Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 061/217] Bluetooth: hidp: use correct wait queue when removing ctrl_wait Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 062/217] binder: change error code from postive to negative in binder_transaction Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 063/217] net: skb_vlan_untag(): don't reset transport offset if set by GRO layer Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 064/217] drm/omap: Fix runtime PM imbalance on error Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 065/217] pinctrl: qcom: Kconfig: Rework PINCTRL_MSM to be a depenency rather then a selected config Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 066/217] ASoC: Fix vaud18 power leakage of mt6359 Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 067/217] mwifiex: pcie: skip cancel_work_sync() on reset failure path Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 068/217] drm/amd/amdgpu: Fix incorrect logic to increment VCN doorbell index Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 069/217] drm/amd/amdgpu: Add rev_id workaround logic for SRIOV setup Sasha Levin
2020-12-23  2:13 ` [PATCH AUTOSEL 5.10 070/217] ASoC: Intel: sof_sdw: add quirk for new TigerLake-SDCA device Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 071/217] RDMA/core: Postpone uobject cleanup on failure till FD close Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 072/217] MIPS: BMC47xx: fix kconfig dependency bug for BCM47XX_SSB Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 073/217] net: ipconfig: Avoid spurious blank lines in boot log Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 074/217] drm/amd/amdgpu: Update VCN initizalization behvaior Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 075/217] drm/amdgpu: check hive pointer before access Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 076/217] jfs: Fix memleak in dbAdjCtl Sasha Levin
2020-12-23  2:14 ` [PATCH AUTOSEL 5.10 077/217] r8169: use READ_ONCE in rtl_tx_slots_avail Sasha Levin

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