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To: open list , linux-mm , lkft-triage@lists.linaro.org, linux-ext4 , LTP List Cc: Andrew Morton , Arnd Bergmann , Dan Carpenter , "Theodore Ts'o" , Andreas Dilger , Ojaswin Mujoo Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: EAAE440009 X-Stat-Signature: 4fios464denym5df8g38mkax7qh1oqpd X-Rspam-User: X-HE-Tag: 1689487387-329490 X-HE-Meta: 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 Y7zl0hA0 dNm2FaxDRYwIKFdP/uCYTI5giOrtjt7p+sFDi3+a/8Oh/hsFNoOUvAc7bTqHhVYdrOT+oplElLSsFaG1DSdxb8DtlFXxlcWfYHVBJdMIwBHXskzFAGuVCA/HFrf1QO/0u3IL7eOIwactsgxVAPuziTJxJwljV/pqjhmaAJe0H2RtFXWvrJWuEaIhTbaRgZcZP8rhPFCpVaB/oy5rNzEFmhN8lkApa2cs7tFCv0dQhTS09KMqEqBlytWdnmR2zj8uzn8UbjeglHIlxcGyIBO0ooU+0wVqKtvN/bXvd 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: Following kernel BUG noticed while testing LTP fs testing on x86_64 arch x86_64 on the Linux next-20230716 built with clang toolchain. I see a similar crash log on arm64 Juno-r2. The logs are shared below. Reported-by: Linux Kernel Functional Testing x86 log: ------- tst_test.c:1634: TINFO: === Testing on ext2 === tst_test.c:1093: TINFO: Formatting /dev/loop0 with ext2 opts='' extra opts='' mke2fs 1.46.5 (30-Dec-2021) [ 1393.346989] EXT4-fs (loop0): mounting ext2 file system using the ext4 subsystem [ 1393.396754] EXT4-fs (loop0): mounted filesystem 7ca8e239-bc8f-488c-af12-5e0ef12d17a5 r/w without journal. Quota mode: none. fs_fill.c:115: TINFO: Running 6 writer threads tst_fill_fs.c:109: TINFO: writev(\"mntpoint/subdir/thread6/AOF\", iov, 512): ENOSPC tst_fill_fs.c:109: TINFO: writev(\"mntpoint/subdir/thread5/AOF\", iov, 512): ENOSPC ... tst_fill_fs.c:109: TINFO: writev(\"mntpoint/subdir/thread6/AOF\", iov, 512): ENOSPC tst_fill_fs.c:109: TINFO: writev(\"mntpoint/subdir/thread3/AOF\", iov, 512): ENOSPC tst_fill_fs.c:109: TINF[ 1393.817197] ------------[ cut here ]------------ [ 1393.823305] kernel BUG at fs/ext4/mballoc.c:4369! O: writev(\"mntpo[ 1393.828041] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 1393.834448] CPU: 3 PID: 8606 Comm: fs_fill Not tainted 6.5.0-rc1-next-20230714 #1 [ 1393.841925] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 1393.849396] RIP: 0010:ext4_mb_normalize_request+0x58f/0x5a0 int[/ s1u3b9d3i.r8ode: d7 b4 fc ff 80 4b 59 02 e9 b4 fa ff ff 48 8b 7b 08 48 c7 c6 ba 35 7b 9a 48 c7 c2 75 26 83 9a e8 17 a9 02 00 0f 0b 0f 0b 0f 0b <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 1393.873879] RSP: 0018:ffffad2c03327708 EFLAGS: 00010212 [ 1393.879098] RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1393.886228] RDX: 0000000000000800 RSI: 000000000000c000 RDI: 000000000000c000 [ 1393.893353] RBP: ffffad2c03327770 R08: 00000000ffffffff R09: 000000000000bdac [ 1393.900487] R10: ffffa28309e47098 R11: ffffffff991a03a0 R12: ffffa283232a3620 [ 1393.907611] R13: 0000000000000000 R14: ffffa283232a3658 R15: ffffa28309e47098 [ 1393.914733] FS: 00007f6963e80640(0000) GS:ffffa2865fd80000(0000) knlGS:0000000000000000 [ 1393.922811] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1393.928550] CR2: 00007f694c008ba8 CR3: 000000012cb72001 CR4: 00000000003706e0 [ 1393.935681] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1393.942804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1393.949930] Call Trace: [ 1393.952374] [ 1393.954472] ? __die_body+0x6c/0xc0 [ 1393.957964] ? die+0xae/0xe0 [ 1393.960841] ? do_trap+0x8d/0x160 [ 1393.964159] ? ext4_mb_normalize_request+0x58f/0x5a0 [ 1393.969119] ? handle_invalid_op+0x7f/0xd0 [ 1393.973218] ? ext4_mb_normalize_request+0x58f/0x5a0 [ 1393.978183] ? exc_invalid_op+0x36/0x50 [ 1393.982023] ? asm_exc_invalid_op+0x1f/0x30 [ 1393.986210] ? __pfx_ext4_dirty_inode+0x10/0x10 [ 1393.990740] ? ext4_mb_normalize_request+0x58f/0x5a0 [ 1393.995698] ? ext4_mb_normalize_request+0x311/0x5a0 [ 1394.000664] ? _raw_read_unlock+0x20/0x40 [ 1394.004676] ext4_mb_new_blocks+0x3c8/0xdf0 [ 1394.008864] ? mark_buffer_dirty_inode+0x26/0xb0 [ 1394.013483] ? __ext4_handle_dirty_metadata+0x7d/0x230 [ 1394.018620] ext4_ind_map_blocks+0x74e/0xc30 [ 1394.022897] ext4_map_blocks+0x2d6/0x640 [ 1394.026821] _ext4_get_block+0x92/0x150 [ 1394.030659] ext4_get_block+0x1b/0x30 [ 1394.034316] __block_write_begin_int+0x193/0x670 [ 1394.038928] ? __pfx_ext4_get_block+0x10/0x10 [ 1394.043277] ? __ext4_journal_start_sb+0x9f/0x210 [ 1394.047974] __block_write_begin+0x1f/0x50 [ 1394.052065] ext4_write_begin+0x1fa/0x520 [ 1394.056072] generic_perform_write+0xb7/0x260 [ 1394.060431] ext4_buffered_write_iter+0xcd/0x150 [ 1394.065049] ext4_file_write_iter+0x341/0x960 [ 1394.069407] ? iovec_from_user+0x53/0x110 [ 1394.073420] do_iter_write+0x202/0x320 [ 1394.077173] vfs_writev+0x19c/0x280 [ 1394.080666] do_writev+0x77/0x110 [ 1394.083978] __x64_sys_writev+0x23/0x30 [ 1394.087816] do_syscall_64+0x48/0xa0 [ 1394.091386] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 1394.096440] RIP: 0033:0x7f696678aa7d [ 1394.100011] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 0a 55 f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 5e 55 f8 ff 48 [ 1394.118756] RSP: 002b:00007f6963e7cdd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 [ 1394.126315] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f696678aa7d [ 1394.133436] RDX: 0000000000000200 RSI: 00007f6963e7ce00 RDI: 0000000000000007 [ 1394.140562] RBP: 0000000000d4bbe8 R08: 0000000000000000 R09: 0000000000000180 [ 1394.147684] R10: 0000000000000180 R11: 0000000000000293 R12: 0000000000000007 [ 1394.154809] R13: 0000000000000003 R14: 00007f6963e805c0 R15: 0000000000200000 [ 1394.161933] [ 1394.164118] Modules linked in: tun x86_pkg_temp_thermal [ 1394.169352] ---[ end trace 0000000000000000 ]--- Links: - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230714/testrun/18306459/suite/log-parser-test/tests/ - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230714/testrun/18306459/suite/log-parser-test/test/check-kernel-bug/log - https://lkft.validation.linaro.org/scheduler/job/6584529#L2195 - https://storage.tuxsuite.com/public/linaro/lkft/builds/2SY3QjxEGsLoae4uGpfjPnZqwKC/ Juno-r2 log: ------------ tst_test.c:1634: TINFO: === Testing on ext3 === tst_test.c:1093: TINFO: Formatting /dev/loop0 with ext3 opts='' extra opts='' mke2fs 1.46.5 (30-Dec-2021) [ 2086.751198] EXT4-fs (loop0): mounting ext3 file system using the ext4 subsystem [ 2086.802353] EXT4-fs (loop0): mounted filesystem 0b1ac79e-51b8-47a0-b8c8-13ff4c4c2459 r/w with ordered data mode. Quota mode: none. [ 2092.630907] ================================================================== [ 2092.638172] BUG: KASAN: slab-use-after-free in copy_page_from_iter_atomic+0x778/0x8c8 [ 2092.646046] Read of size 1024 at addr ffff000834540000 by task kworker/u12:1/15943 [ 2092.653643] [ 2092.655141] CPU: 2 PID: 15943 Comm: kworker/u12:1 Not tainted 6.5.0-rc1-next-20230714 #1 [ 2092.663264] Hardware name: ARM Juno development board (r2) (DT) [ 2092.669204] Workqueue: loop0 loop_rootcg_workfn [ 2092.673773] Call trace: [ 2092.676226] dump_backtrace+0x9c/0x128 [ 2092.679997] show_stack+0x20/0x38 [ 2092.683328] dump_stack_lvl+0x60/0xb0 [ 2092.687009] print_report+0xf4/0x5b0 [ 2092.690607] kasan_report+0xa8/0x100 [ 2092.694204] kasan_check_range+0xe8/0x190 [ 2092.698231] memcpy+0x3c/0xa0 [ 2092.701213] copy_page_from_iter_atomic+0x778/0x8c8 [ 2092.706113] generic_perform_write+0x1b4/0x318 [ 2092.710576] ext4_buffered_write_iter+0x98/0x1a8 [ 2092.715217] ext4_file_write_iter+0xf0/0xb20 [ 2092.719507] do_iter_readv_writev+0x134/0x200 [ 2092.723889] do_iter_write+0xd8/0x390 [ 2092.727572] vfs_iter_write+0x60/0x88 [ 2092.731256] loop_process_work+0x8f0/0x1000 [ 2092.735463] loop_rootcg_workfn+0x28/0x40 [ 2092.739495] process_one_work+0x42c/0x888 [ 2092.743524] worker_thread+0xa4/0x6a8 [ 2092.747203] kthread+0x19c/0x1b0 [ 2092.750450] ret_from_fork+0x10/0x20 [ 2092.754045] [ 2092.755539] Allocated by task 15409: [ 2092.759126] kasan_save_stack+0x2c/0x58 [ 2092.762986] kasan_set_track+0x2c/0x40 [ 2092.766756] kasan_save_alloc_info+0x24/0x38 [ 2092.771044] __kasan_slab_alloc+0xa8/0xb0 [ 2092.775075] kmem_cache_alloc+0x130/0x330 [ 2092.779105] jbd2_alloc+0x78/0x90 [ 2092.782437] do_get_write_access+0x2b8/0x758 [ 2092.786728] jbd2_journal_get_write_access+0xb0/0xf8 [ 2092.791715] __ext4_journal_get_write_access+0xc4/0x250 [ 2092.796968] ext4_reserve_inode_write+0xe0/0x138 [ 2092.801610] __ext4_mark_inode_dirty+0xe4/0x3e8 [ 2092.806164] ext4_dirty_inode+0x8c/0xb8 [ 2092.810021] __mark_inode_dirty+0x84/0x618 [ 2092.814138] generic_write_end+0x170/0x180 [ 2092.818253] ext4_da_write_end+0x120/0x3d0 [ 2092.822372] generic_perform_write+0x1ec/0x318 [ 2092.826835] ext4_buffered_write_iter+0x98/0x1a8 [ 2092.831472] ext4_file_write_iter+0xf0/0xb20 [ 2092.835760] vfs_write+0x450/0x550 [ 2092.839176] ksys_write+0xcc/0x178 [ 2092.842592] __arm64_sys_write+0x4c/0x68 [ 2092.846530] invoke_syscall+0x68/0x198 [ 2092.850303] el0_svc_common.constprop.0+0x12c/0x168 [ 2092.855206] do_el0_svc+0x4c/0xd8 [ 2092.858541] el0_svc+0x30/0x70 [ 2092.861612] el0t_64_sync_handler+0x13c/0x158 [ 2092.865990] el0t_64_sync+0x190/0x198 [ 2092.869668] [ 2092.871163] The buggy address belongs to the object at ffff000834540000 [ 2092.871163] which belongs to the cache jbd2_1k of size 1024 [ 2092.883459] The buggy address is located 0 bytes inside of [ 2092.883459] freed 1024-byte region [ffff000834540000, ffff000834540400) [ 2092.895670] [ 2092.897164] The buggy address belongs to the physical page: [ 2092.902751] page:0000000021bf671c refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff000834540000 pfn:0x8b4540 [ 2092.913485] head:0000000021bf671c order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 2092.921602] flags: 0xbfffc0000010200(slab|head|node=0|zone=2|lastcpupid=0xffff) [ 2092.928944] page_type: 0xffffffff() [ 2092.932452] raw: 0bfffc0000010200 ffff00082b6c4000 dead000000000122 0000000000000000 [ 2092.940224] raw: ffff000834540000 000000008010000f 00000001ffffffff 0000000000000000 [ 2092.947989] page dumped because: kasan: bad access detected [ 2092.953576] [ 2092.955070] Memory state around the buggy address: [ 2092.959877] ffff00083453ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 2092.967123] ffff00083453ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 2092.974368] >ffff000834540000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2092.981610] ^ [ 2092.984849] ffff000834540080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2092.992094] ffff000834540100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2092.999336] ================================================================== [ 2093.006683] Disabling lock debugging due to kernel taint [ 2099.278554] preadv203 (103227): drop_caches: 3 [ 2099.514899] preadv203 (103228): drop_caches: 3 [ 2099.552185] preadv203 (103228): drop_caches: 3 [ 2099.586917] preadv203 (103228): drop_caches: 3 Links: - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230714/testrun/18303379/suite/log-parser-test/tests/ - https://lkft.validation.linaro.org/scheduler/job/6584681#L2640 - https://storage.tuxsuite.com/public/linaro/lkft/builds/2SY3ZSm0bzBoyQkWFQAYYZru1UJ/ -- Linaro LKFT https://lkft.linaro.org