{"api_version":"1","generated_at":"2026-11-10T18:31:43+00:00","cve":"CVE-2024-41031","urls":{"html":"https://cve.report/CVE-2024-41031","api":"https://cve.report/api/cve/CVE-2024-41031.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-41031","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-41031"},"summary":{"title":"mm/filemap: skip to create PMD-sized page cache if needed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/filemap: skip to create PMD-sized page cache if needed\n\nOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB.  The\nPMD-sized page cache can't be supported by xarray as the following error\nmessages indicate.\n\n------------[ cut here ]------------\nWARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128\nModules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib  \\\nnft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct    \\\nnft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4    \\\nip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm      \\\nfuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64      \\\nsha1_ce virtio_net net_failover virtio_console virtio_blk failover \\\ndimlib virtio_mmio\nCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9\nHardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024\npstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\npc : xas_split_alloc+0xf8/0x128\nlr : split_huge_page_to_list_to_order+0x1c4/0x720\nsp : ffff800087a4f6c0\nx29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff\nx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858\nx23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000\nx20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000\nx17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000\nx14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020\nx11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28\nx8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8\nx5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40\nx2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000\nCall trace:\n xas_split_alloc+0xf8/0x128\n split_huge_page_to_list_to_order+0x1c4/0x720\n truncate_inode_partial_folio+0xdc/0x160\n truncate_inode_pages_range+0x1b4/0x4a8\n truncate_pagecache_range+0x84/0xa0\n xfs_flush_unmap_range+0x70/0x90 [xfs]\n xfs_file_fallocate+0xfc/0x4d8 [xfs]\n vfs_fallocate+0x124/0x2e8\n ksys_fallocate+0x4c/0xa0\n __arm64_sys_fallocate+0x24/0x38\n invoke_syscall.constprop.0+0x7c/0xd8\n do_el0_svc+0xb4/0xd0\n el0_svc+0x44/0x1d8\n el0t_64_sync_handler+0x134/0x150\n el0t_64_sync+0x17c/0x180\n\nFix it by skipping to allocate PMD-sized page cache when its size is\nlarger than MAX_PAGECACHE_ORDER.  For this specific case, we will fall to\nregular path where the readahead window is determined by BDI's sysfs file\n(read_ahead_kb).","state":"PUBLISHED","assigner":"Linux","published_at":"2024-07-29 15:15:11","updated_at":"2026-10-30 13:17:30"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058","name":"https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972","name":"https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6ab83133e44ad42e07665a4f63274f1bf749e8cc","name":"https://git.kernel.org/stable/c/6ab83133e44ad42e07665a4f63274f1bf749e8cc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21","name":"https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-41031","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-41031","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4687fdbb805a92ce5a9f23042c436dc64fef8b77 6ab83133e44ad42e07665a4f63274f1bf749e8cc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4687fdbb805a92ce5a9f23042c436dc64fef8b77 06b5a69c27ec405a3c3f2da8520ff1ee70b94a21 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4687fdbb805a92ce5a9f23042c436dc64fef8b77 1ef650d3b1b2a16473981b447f38705fe9b93972 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4687fdbb805a92ce5a9f23042c436dc64fef8b77 3390916aca7af1893ed2ebcdfee1d6fdb65bb058 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.191 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.41 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.9.10 6.9.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.10 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2024","cve_id":"41031","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-02T04:39:56.076Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_transferred"],"url":"https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21"},{"tags":["x_transferred"],"url":"https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972"},{"tags":["x_transferred"],"url":"https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058"}],"title":"CVE Program 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Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6ab83133e44ad42e07665a4f63274f1bf749e8cc","status":"affected","version":"4687fdbb805a92ce5a9f23042c436dc64fef8b77","versionType":"git"},{"lessThan":"06b5a69c27ec405a3c3f2da8520ff1ee70b94a21","status":"affected","version":"4687fdbb805a92ce5a9f23042c436dc64fef8b77","versionType":"git"},{"lessThan":"1ef650d3b1b2a16473981b447f38705fe9b93972","status":"affected","version":"4687fdbb805a92ce5a9f23042c436dc64fef8b77","versionType":"git"},{"lessThan":"3390916aca7af1893ed2ebcdfee1d6fdb65bb058","status":"affected","version":"4687fdbb805a92ce5a9f23042c436dc64fef8b77","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.191","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.41","versionType":"semver"},{"lessThanOrEqual":"6.9.*","status":"unaffected","version":"6.9.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.10","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.191","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.41","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.9.10","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.10","versionStartIncluding":"5.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/filemap: skip to create PMD-sized page cache if needed\n\nOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB.  The\nPMD-sized page cache can't be supported by xarray as the following error\nmessages indicate.\n\n------------[ cut here ]------------\nWARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128\nModules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib  \\\nnft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct    \\\nnft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4    \\\nip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm      \\\nfuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64      \\\nsha1_ce virtio_net net_failover virtio_console virtio_blk failover \\\ndimlib virtio_mmio\nCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9\nHardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024\npstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\npc : xas_split_alloc+0xf8/0x128\nlr : split_huge_page_to_list_to_order+0x1c4/0x720\nsp : ffff800087a4f6c0\nx29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff\nx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858\nx23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000\nx20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000\nx17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000\nx14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020\nx11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28\nx8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8\nx5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40\nx2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000\nCall trace:\n xas_split_alloc+0xf8/0x128\n split_huge_page_to_list_to_order+0x1c4/0x720\n truncate_inode_partial_folio+0xdc/0x160\n truncate_inode_pages_range+0x1b4/0x4a8\n truncate_pagecache_range+0x84/0xa0\n xfs_flush_unmap_range+0x70/0x90 [xfs]\n xfs_file_fallocate+0xfc/0x4d8 [xfs]\n vfs_fallocate+0x124/0x2e8\n ksys_fallocate+0x4c/0xa0\n __arm64_sys_fallocate+0x24/0x38\n invoke_syscall.constprop.0+0x7c/0xd8\n do_el0_svc+0xb4/0xd0\n el0_svc+0x44/0x1d8\n el0t_64_sync_handler+0x134/0x150\n el0t_64_sync+0x17c/0x180\n\nFix it by skipping to allocate PMD-sized page cache when its size is\nlarger than MAX_PAGECACHE_ORDER.  For this specific case, we will fall to\nregular path where the readahead window is determined by BDI's sysfs file\n(read_ahead_kb)."}],"providerMetadata":{"dateUpdated":"2026-10-30T12:18:43.308Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/6ab83133e44ad42e07665a4f63274f1bf749e8cc"},{"url":"https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21"},{"url":"https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972"},{"url":"https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058"}],"title":"mm/filemap: skip to create PMD-sized page cache if needed","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-41031","datePublished":"2024-07-29T14:31:46.943Z","dateReserved":"2024-07-12T12:17:45.618Z","dateUpdated":"2026-10-30T12:18:43.308Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-07-29 15:15:11","lastModifiedDate":"2026-10-30 13:17:30","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2024-09-10T16:23:47.337033Z","id":"CVE-2024-41031","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.6.41","matchCriteriaId":"CB8B6FE0-8AA9-42BD-BCE9-F8A593A9F032"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.9.10","matchCriteriaId":"AB2E8DEC-CFD5-4C2B-981D-E7E45A36C352"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*","matchCriteriaId":"2EBB4392-5FA6-4DA9-9772-8F9C750109FA"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*","matchCriteriaId":"331C2F14-12C7-45D5-893D-8C52EE38EA10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*","matchCriteriaId":"3173713D-909A-4DD3-9DD4-1E171EB057EE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*","matchCriteriaId":"79F18AFA-40F7-43F0-BA30-7BDB65F918B9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*","matchCriteriaId":"BD973AA4-A789-49BD-8D57-B2846935D3C7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:*","matchCriteriaId":"8F3E9E0C-AC3E-4967-AF80-6483E8AB0078"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:*","matchCriteriaId":"11AF4CB9-F697-4EA4-8903-8F9417EFDA8E"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"41031","Ordinal":"1","Title":"mm/filemap: skip to create PMD-sized page cache if needed","CVE":"CVE-2024-41031","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"41031","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/filemap: skip to create PMD-sized page cache if needed\n\nOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB.  The\nPMD-sized page cache can't be supported by xarray as the following error\nmessages indicate.\n\n------------[ cut here ]------------\nWARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128\nModules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib  \\\nnft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct    \\\nnft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4    \\\nip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm      \\\nfuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64      \\\nsha1_ce virtio_net net_failover virtio_console virtio_blk failover \\\ndimlib virtio_mmio\nCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9\nHardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024\npstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\npc : xas_split_alloc+0xf8/0x128\nlr : split_huge_page_to_list_to_order+0x1c4/0x720\nsp : ffff800087a4f6c0\nx29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff\nx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858\nx23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000\nx20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000\nx17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000\nx14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020\nx11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28\nx8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8\nx5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40\nx2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000\nCall trace:\n xas_split_alloc+0xf8/0x128\n split_huge_page_to_list_to_order+0x1c4/0x720\n truncate_inode_partial_folio+0xdc/0x160\n truncate_inode_pages_range+0x1b4/0x4a8\n truncate_pagecache_range+0x84/0xa0\n xfs_flush_unmap_range+0x70/0x90 [xfs]\n xfs_file_fallocate+0xfc/0x4d8 [xfs]\n vfs_fallocate+0x124/0x2e8\n ksys_fallocate+0x4c/0xa0\n __arm64_sys_fallocate+0x24/0x38\n invoke_syscall.constprop.0+0x7c/0xd8\n do_el0_svc+0xb4/0xd0\n el0_svc+0x44/0x1d8\n el0t_64_sync_handler+0x134/0x150\n el0t_64_sync+0x17c/0x180\n\nFix it by skipping to allocate PMD-sized page cache when its size is\nlarger than MAX_PAGECACHE_ORDER.  For this specific case, we will fall to\nregular path where the readahead window is determined by BDI's sysfs file\n(read_ahead_kb).","Type":"Description","Title":"mm/filemap: skip to create PMD-sized page cache if needed"}]}}}