From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Zhou Guanghui <zhouguanghui1@huawei.com>,
Will Deacon <will@kernel.org>, Sasha Levin <sashal@kernel.org>,
joro@8bytes.org, robin.murphy@arm.com,
thunder.leizhen@huawei.com, jean-philippe@linaro.org,
tglx@linutronix.de, john.garry@huawei.com,
christophe.jaillet@wanadoo.fr,
linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org
Subject: [PATCH AUTOSEL 5.16 040/109] iommu/arm-smmu-v3: fix event handling soft lockup
Date: Fri, 1 Apr 2022 10:31:47 -0400 [thread overview]
Message-ID: <20220401143256.1950537-40-sashal@kernel.org> (raw)
In-Reply-To: <20220401143256.1950537-1-sashal@kernel.org>
From: Zhou Guanghui <zhouguanghui1@huawei.com>
[ Upstream commit 30de2b541af98179780054836b48825fcfba4408 ]
During event processing, events are read from the event queue one
by one until the queue is empty.If the master device continuously
requests address access at the same time and the SMMU generates
events, the cyclic processing of the event takes a long time and
softlockup warnings may be reported.
arm-smmu-v3 arm-smmu-v3.34.auto: event 0x0a received:
arm-smmu-v3 arm-smmu-v3.34.auto: 0x00007f220000280a
arm-smmu-v3 arm-smmu-v3.34.auto: 0x000010000000007e
arm-smmu-v3 arm-smmu-v3.34.auto: 0x00000000034e8670
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [irq/268-arm-smm:247]
Call trace:
_dev_info+0x7c/0xa0
arm_smmu_evtq_thread+0x1c0/0x230
irq_thread_fn+0x30/0x80
irq_thread+0x128/0x210
kthread+0x134/0x138
ret_from_fork+0x10/0x1c
Kernel panic - not syncing: softlockup: hung tasks
Fix this by calling cond_resched() after the event information is
printed.
Signed-off-by: Zhou Guanghui <zhouguanghui1@huawei.com>
Link: https://lore.kernel.org/r/20220119070754.26528-1-zhouguanghui1@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index f5848b351b19..af00714c8056 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -1558,6 +1558,7 @@ static irqreturn_t arm_smmu_evtq_thread(int irq, void *dev)
dev_info(smmu->dev, "\t0x%016llx\n",
(unsigned long long)evt[i]);
+ cond_resched();
}
/*
--
2.34.1
next prev parent reply other threads:[~2022-04-01 15:03 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-01 14:31 [PATCH AUTOSEL 5.16 001/109] drm: Add orientation quirk for GPD Win Max Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 002/109] ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 003/109] drm/amd/display: Add signal type check when verify stream backends same Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 004/109] drm/edid: remove non_desktop quirk for HPN-3515 and LEN-B800 Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 005/109] drm/edid: improve non-desktop quirk logging Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 006/109] scsi: scsi_debug: Address races following module load Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 007/109] drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 008/109] drm/amd/display: Fix memory leak Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 009/109] drm/amd/display: Use PSR version selected during set_psr_caps Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 010/109] usb: gadget: tegra-xudc: Do not program SPARAM Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 011/109] usb: gadget: tegra-xudc: Fix control endpoint's definitions Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 012/109] usb: cdnsp: fix cdnsp_decode_trb function to properly handle ret value Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 013/109] ptp: replace snprintf with sysfs_emit Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 014/109] selftests, xsk: Fix bpf_res cleanup test Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 015/109] drm/amdkfd: Don't take process mutex for svm ioctls Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 016/109] drm/amdkfd: Ensure mm remain valid in svm deferred_list work Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 017/109] drm/amdkfd: svm range restore work deadlock when process exit Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 018/109] powerpc: dts: t104xrdb: fix phy type for FMAN 4/5 Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 019/109] ath11k: fix kernel panic during unload/load ath11k modules Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 020/109] ath11k: pci: fix crash on suspend if board file is not found Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 021/109] ath11k: mhi: use mhi_sync_power_up() Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 022/109] net/smc: Send directly when TCP_CORK is cleared Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 023/109] drm/bridge: Add missing pm_runtime_put_sync Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 024/109] bpf: Make dst_port field in struct bpf_sock 16-bit wide Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 025/109] scsi: mvsas: Replace snprintf() with sysfs_emit() Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 026/109] scsi: bfa: " Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 027/109] drm/v3d: fix missing unlock Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 028/109] power: supply: axp20x_battery: properly report current when discharging Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 029/109] mt76: mt7921: fix crash when startup fails Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 030/109] mt76: dma: initialize skip_unmap in mt76_dma_rx_fill Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 031/109] cfg80211: don't add non transmitted BSS to 6GHz scanned channels Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 032/109] libbpf: Fix build issue with llvm-readelf Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 033/109] ipv6: make mc_forwarding atomic Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 034/109] net: initialize init_net earlier Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 035/109] powerpc: Set crashkernel offset to mid of RMA region Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 036/109] drm/amdgpu: Fix recursive locking warning Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 037/109] scsi: smartpqi: Fix rmmod stack trace Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 038/109] scsi: smartpqi: Fix kdump issue when controller is locked up Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 039/109] PCI: aardvark: Fix support for MSI interrupts Sasha Levin
2022-04-01 14:31 ` Sasha Levin [this message]
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 041/109] usb: ehci: add pci device support for Aspeed platforms Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 042/109] KVM: arm64: Do not change the PMU event filter after a VCPU has run Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 043/109] PCI: endpoint: Fix alignment fault error in copy tests Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 044/109] tcp: Don't acquire inet_listen_hashbucket::lock with disabled BH Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 045/109] PCI: pciehp: Add Qualcomm quirk for Command Completed erratum Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 046/109] scsi: mpi3mr: Fix reporting of actual data transfer size Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 047/109] scsi: mpi3mr: Fix memory leaks Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 048/109] powerpc/set_memory: Avoid spinlock recursion in change_page_attr() Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 049/109] power: supply: axp288-charger: Set Vhold to 4.4V Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 050/109] drm/amd/display: reset lane settings after each PHY repeater LT Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 051/109] net/mlx5e: Disable TX queues before registering the netdev Sasha Levin
2022-04-01 14:31 ` [PATCH AUTOSEL 5.16 052/109] usb: dwc3: pci: Set the swnode from inside dwc3_pci_quirks() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 053/109] iwlwifi: mvm: Correctly set fragmented EBS Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 054/109] iwlwifi: mvm: Passively scan non PSC channels only when requested so Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 055/109] iwlwifi: fix small doc mistake for iwl_fw_ini_addr_val Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 056/109] iwlwifi: mvm: move only to an enabled channel Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 057/109] drm/msm/dsi: Remove spurious IRQF_ONESHOT flag Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 058/109] rtw89: fix RCU usage in rtw89_core_txq_push() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 059/109] ipv4: Invalidate neighbour for broadcast address upon address addition Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 060/109] dm ioctl: prevent potential spectre v1 gadget Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 061/109] dm: requeue IO if mapping table not yet available Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 062/109] drm/amdkfd: make CRAT table missing message informational only Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 063/109] vfio/pci: Stub vfio_pci_vga_rw when !CONFIG_VFIO_PCI_VGA Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 064/109] scsi: pm8001: Fix pm80xx_pci_mem_copy() interface Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 065/109] scsi: pm8001: Fix pm8001_mpi_task_abort_resp() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 066/109] scsi: pm8001: Fix task leak in pm8001_send_abort_all() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 067/109] scsi: pm8001: Fix tag leaks on error Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 068/109] scsi: pm8001: Fix memory leak in pm8001_chip_fw_flash_update_req() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 069/109] mt76: mt7915: fix injected MPDU transmission to not use HW A-MSDU Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 070/109] drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 071/109] powerpc/64s/hash: Make hash faults work in NMI context Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 072/109] mt76: mt7615: Fix assigning negative values to unsigned variable Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 073/109] scsi: aha152x: Fix aha152x_setup() __setup handler return value Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 074/109] scsi: hisi_sas: Free irq vectors in order for v3 HW Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 075/109] scsi: hisi_sas: Limit users changing debugfs BIST count value Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 076/109] net/smc: correct settings of RMB window update limit Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 077/109] mips: ralink: fix a refcount leak in ill_acc_of_setup() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 078/109] macvtap: advertise link netns via netlink Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 079/109] tuntap: add sanity checks about msg_controllen in sendmsg Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 080/109] iommu/iova: Improve 32-bit free space estimate Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 081/109] Bluetooth: Fix not checking for valid hdev on bt_dev_{info,warn,err,dbg} Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 082/109] Bluetooth: use memset avoid memory leaks Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 083/109] bnxt_en: Eliminate unintended link toggle during FW reset Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 084/109] PCI: endpoint: Fix misused goto label Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 085/109] MIPS: fix fortify panic when copying asm exception handlers Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 086/109] powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 087/109] powerpc/secvar: fix refcount leak in format_show() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 088/109] scsi: libfc: Fix use after free in fc_exch_abts_resp() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 089/109] can: isotp: set default value for N_As to 50 micro seconds Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 090/109] can: etas_es58x: es58x_fd_rx_event_msg(): initialize rx_event_msg before calling es58x_check_msg_len() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 091/109] riscv: Fixed misaligned memory access. Fixed pointer comparison Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 092/109] net: account alternate interface name memory Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 093/109] net: limit altnames to 64k total Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 094/109] net/mlx5e: Remove overzealous validations in netlink EEPROM query Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 095/109] platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 096/109] platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 097/109] net: sfp: add 2500base-X quirk for Lantech SFP module Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 098/109] usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 099/109] mt76: fix monitor mode crash with sdio driver Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 100/109] xtensa: fix DTC warning unit_address_format Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 101/109] MIPS: ingenic: correct unit node address Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 102/109] Bluetooth: Fix use after free in hci_send_acl Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 103/109] netfilter: conntrack: revisit gc autotuning Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 104/109] netlabel: fix out-of-bounds memory accesses Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 105/109] ceph: fix inode reference leakage in ceph_get_snapdir() Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 106/109] ceph: fix memory leak in ceph_readdir when note_last_dentry returns error Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 107/109] lib/Kconfig.debug: add ARCH dependency for FUNCTION_ALIGN option Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 108/109] init/main.c: return 1 from handled __setup() functions Sasha Levin
2022-04-01 14:32 ` [PATCH AUTOSEL 5.16 109/109] minix: fix bug when opening a file with O_DIRECT Sasha Levin
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