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Thu, 14 Jul 2022 08:20:12 +0000 (UTC) X-FDA: 79685007864.23.1528740 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf05.hostedemail.com (Postfix) with ESMTP id 18FAD100052 for ; Thu, 14 Jul 2022 08:20:10 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8E877139F; Thu, 14 Jul 2022 01:20:10 -0700 (PDT) Received: from [10.162.42.10] (unknown [10.162.42.10]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A6EB73F70D; Thu, 14 Jul 2022 01:20:05 -0700 (PDT) Message-ID: Date: Thu, 14 Jul 2022 13:50:02 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [next] Kernel panic - not syncing: swiotlb_init_remap: nslabs = 0 too small Content-Language: en-US To: Naresh Kamboju , Linux-Next Mailing List , open list , lkft-triage@lists.linaro.org, regressions@lists.linux.dev, linux-mm Cc: Andrew Morton , Stephen Rothwell , Christoph Hellwig , "open list:IOMMU DRIVERS" , Tom Lendacky , conor@kernel.org, Marek Szyprowski , Robin Murphy References: From: Anshuman Khandual In-Reply-To: Content-Type: text/plain; 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dkim=none; spf=pass (imf05.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com; dmarc=pass (policy=none) header.from=arm.com X-Stat-Signature: bjgmszpytbz63eorxen86ca4aq7c5brz X-HE-Tag: 1657786810-1679 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 7/14/22 13:17, Naresh Kamboju wrote: > [Please ignore this email if it is already reported] > > Linux next-20220713 boot failed on arm, arm64, x86_64 and i386 [1]. > > Reported-by: Linux Kernel Functional Testing > Reported-by: Naresh Kamboju There are couple of recent commits in swiotlb area, could you please check reverting them, if that solves the problem. 26ffb91fa5e0fb282e8 ("swiotlb: split up the global swiotlb lock") c51ba246cb172c9e947 ("swiotlb: fail map correctly with failed io_tlb_default_mem") > > metadata: > git_ref: master > git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next > git_sha: 4662b7adea50bb62e993a67f611f3be625d3df0d > git_describe: next-20220713 > kernel_version: 5.19.0-rc6 > kernel-config: https://builds.tuxbuild.com/2BtFIR2DegCrbRCCTSZF93YVeiO/config > build-url: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/pipelines/586982028 > artifact-location: https://builds.tuxbuild.com/2BtFIR2DegCrbRCCTSZF93YVeiO > vmlinux.xz: https://builds.tuxbuild.com/2BtFIR2DegCrbRCCTSZF93YVeiO/vmlinux.xz > System.map: https://builds.tuxbuild.com/2BtFIR2DegCrbRCCTSZF93YVeiO/System.map > toolchain: gcc-11 > > Here is the boot log output from arm64 juno-r2 device. > > [ 0.000000] Booting Linux on physical CPU 0x0000000100 [0x410fd033] > [ 0.000000] Linux version 5.19.0-rc6-next-20220713 > (tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 11.3.0-3) 11.3.0, GNU > ld (GNU Binutils for Debian) 2.38) #1 SMP PREEMPT @1657717522 > [ 0.000000] Machine model: ARM Juno development board (r2) > [ 0.000000] earlycon: pl11 at MMIO 0x000000007ff80000 (options '') > [ 0.000000] printk: bootconsole [pl11] enabled > [ 0.000000] efi: UEFI not found. > [ 0.000000] NUMA: No NUMA configuration found > [ 0.000000] NUMA: Faking a node at [mem > 0x0000000080000000-0x00000009ffffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x9fefd1b40-0x9fefd3fff] > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x0000000080000000-0x00000000ffffffff] > [ 0.000000] DMA32 empty > [ 0.000000] Normal [mem 0x0000000100000000-0x00000009ffffffff] > [ 0.000000] Movable zone start for each node > [ 0.000000] Early memory node ranges > [ 0.000000] node 0: [mem 0x0000000080000000-0x00000000feffffff] > [ 0.000000] node 0: [mem 0x0000000880000000-0x00000009ffffffff] > [ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000009ffffffff] > [ 0.000000] On node 0, zone Normal: 4096 pages in unavailable ranges > [ 0.000000] cma: Reserved 32 MiB at 0x00000000fd000000 > [ 0.000000] psci: probing for conduit method from DT. > [ 0.000000] psci: PSCIv1.1 detected in firmware. > [ 0.000000] psci: Using standard PSCI v0.2 function IDs > [ 0.000000] psci: Trusted OS migration not required > [ 0.000000] psci: SMC Calling Convention v1.0 > [ 0.000000] percpu: Embedded 30 pages/cpu s82856 r8192 d31832 u122880 > [ 0.000000] Detected VIPT I-cache on CPU0 > [ 0.000000] CPU features: detected: ARM erratum 843419 > [ 0.000000] CPU features: detected: ARM erratum 845719 > [ 0.000000] Fallback order for Node 0: 0 > [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2060288 > [ 0.000000] Policy zone: Normal > [ 0.000000] Kernel command line: console=ttyAMA0,115200n8 > root=/dev/nfs rw > nfsroot=10.66.16.120:/var/lib/lava/dispatcher/tmp/5283518/extract-nfsrootfs-ulkeoqdy,tcp,hard,vers=3,wsize=65536 > earlycon=pl011,0x7ff80000 console_msg_format=syslog earlycon > default_hugepagesz=2M hugepages=256 > sky2.mac_address=0x00,0x02,0xF7,0x00,0x68,0x51 ip=dhcp > <6>[ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, > 8388608 bytes, linear) > <6>[ 0.000000] Inode-cache hash table entries: 524288 (order: 10, > 4194304 bytes, linear) > <6>[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off > <0>[ 0.000000] Kernel panic - not syncing: swiotlb_init_remap: > nslabs = 0 too small > <4>[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted > 5.19.0-rc6-next-20220713 #1 > <4>[ 0.000000] Hardware name: ARM Juno development board (r2) (DT) > <4>[ 0.000000] Call trace: > <4>[ 0.000000] dump_backtrace+0xe8/0x130 > <4>[ 0.000000] show_stack+0x24/0x60 > <4>[ 0.000000] dump_stack_lvl+0x8c/0xb8 > <4>[ 0.000000] dump_stack+0x18/0x34 > <4>[ 0.000000] panic+0x188/0x38c > <4>[ 0.000000] swiotlb_init_remap+0x50/0x54 > <4>[ 0.000000] swiotlb_init+0x20/0x2c > <4>[ 0.000000] mem_init+0x38/0x48 > <4>[ 0.000000] start_kernel+0x448/0x738 > <4>[ 0.000000] __primary_switched+0xb8/0xc0 > <0>[ 0.000000] ---[ end Kernel panic - not syncing: > swiotlb_init_remap: nslabs = 0 too small ]--- > > Full test log link, > [1] https://lkft.validation.linaro.org/scheduler/job/5283518#L582 > > Best regards > Naresh Kamboju > > > -- > Linaro LKFT > https://lkft.linaro.org