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Add rust-analyzer notes to quick-start.rst - #209
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ojeda
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Apr 20, 2021
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Probably it is best to put the JSON content directly in a rust-project.json file in Doc/rust/, so that people can quickly copy it to the root (after adjusting the sysroot).
Also, should we add it to the .gitignore (when in the root)?
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| The path to ``sysroot_src`` is given by:: | ||
| $(rustc --print sysroot)/lib/rustlib/src/rust/library | ||
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Extra newline (I used 2 between sections).
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Ah, I was thinking one after the code block and two additional...
Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com>
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Jun 25, 2024
The large folio is mapped with folio size(not greater PMD_SIZE) aligned virtual address during the pagefault, ie, 'addr = ALIGN_DOWN(vmf->address, nr_pages * PAGE_SIZE)' in do_anonymous_page(). But after the mremap(), the virtual address only requires PAGE_SIZE alignment. Also pte is moved to new in move_page_tables(), then traversal of the new pte in the numa_rebuild_large_mapping() could hit the following issue, Unable to handle kernel paging request at virtual address 00000a80c021a788 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=00002040341a6000 [00000a80c021a788] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP ... CPU: 76 PID: 15187 Comm: git Kdump: loaded Tainted: G W 6.10.0-rc2+ Rust-for-Linux#209 Hardware name: Huawei TaiShan 2280 V2/BC82AMDD, BIOS 1.79 08/21/2021 pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : numa_rebuild_large_mapping+0x338/0x638 lr : numa_rebuild_large_mapping+0x320/0x638 sp : ffff8000b41c3b00 x29: ffff8000b41c3b30 x28: ffff8000812a0000 x27: 00000000000a8000 x26: 00000000000000a8 x25: 0010000000000001 x24: ffff20401c7170f0 x23: 0000ffff33a1e000 x22: 0000ffff33a76000 x21: ffff20400869eca0 x20: 0000ffff33976000 x19: 00000000000000a8 x18: ffffffffffffffff x17: 0000000000000000 x16: 0000000000000020 x15: ffff8000b41c36a8 x14: 0000000000000000 x13: 205d373831353154 x12: 5b5d333331363732 x11: 000000000011ff78 x10: 000000000011ff10 x9 : ffff800080273f30 x8 : 000000320400869e x7 : c0000000ffffd87f x6 : 00000000001e6ba8 x5 : ffff206f3fb5af88 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : fffffdffc0000000 x0 : 00000a80c021a780 Call trace: numa_rebuild_large_mapping+0x338/0x638 do_numa_page+0x3e4/0x4e0 handle_pte_fault+0x1bc/0x238 __handle_mm_fault+0x20c/0x400 handle_mm_fault+0xa8/0x288 do_page_fault+0x124/0x498 do_translation_fault+0x54/0x80 do_mem_abort+0x4c/0xa8 el0_da+0x40/0x110 el0t_64_sync_handler+0xe4/0x158 el0t_64_sync+0x188/0x190 Fix it by making the start and end not only within the vma range, but also within the page table range. Link: https://lkml.kernel.org/r/20240612122822.4033433-1-wangkefeng.wang@huawei.com Fixes: d2136d7 ("mm: support multi-size THP numa balancing") Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Liu Shixin <liushixin2@huawei.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Ryan Roberts <ryan.roberts@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Darksonn pushed a commit
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Jul 2, 2026
Add two tests to verify the transport header of skb has been set when encapsulate VxLAN using bpf_lwt_push_encap() helper. 1. VxLAN over IPv4. 2. VxLAN over IPv6. Without the fix, the tests would fail: lwt_ip_encap_vxlan:FAIL:transport_hdr offset unexpected transport_hdr offset: actual 70 != expected 20 Rust-for-Linux#208 lwt_ip_encap_vxlan_ipv4:FAIL lwt_ip_encap_vxlan:FAIL:transport_hdr offset unexpected transport_hdr offset: actual 110 != expected 40 Rust-for-Linux#209 lwt_ip_encap_vxlan_ipv6:FAIL The unexpected offsets are: outer encap headers (IPv4: iphdr+udp+vxlan+eth = 50 bytes, IPv6: ipv6hdr+udp+vxlan+eth = 70 bytes) plus the inner IP header (20 or 40 bytes), because without the fix transport_header still points at the inner transport layer instead of the outer UDP header. Assisted-by: Claude:claude-sonnet-4-6 Cc: Leon Hwang <leon.huangfu@shopee.com> Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20260602150931.49629-3-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Added a section in the quick start docs on how to configure rust-analyzer (from @wedsonaf's example #202).