BTRFS info (device loop1): enabling ssd optimizations BTRFS info (device loop1): cleaning free space cache v1 ===================================================== BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:629 [inline] BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:605 [inline] BUG: KMSAN: uninit-value in generic_bin_search+0x780/0xb80 fs/btrfs/ctree.c:789 btrfs_comp_cpu_keys fs/btrfs/ctree.c:629 [inline] comp_keys fs/btrfs/ctree.c:605 [inline] generic_bin_search+0x780/0xb80 fs/btrfs/ctree.c:789 search_for_key_slot fs/btrfs/ctree.c:1742 [inline] search_leaf fs/btrfs/ctree.c:1834 [inline] btrfs_search_slot+0x3794/0x4630 fs/btrfs/ctree.c:2045 update_dev_stat_item fs/btrfs/volumes.c:7884 [inline] btrfs_run_dev_stats+0x3d3/0x1510 fs/btrfs/volumes.c:7961 commit_cowonly_roots+0x2ac/0x1110 fs/btrfs/transaction.c:1275 btrfs_commit_transaction+0x2235/0x5650 fs/btrfs/transaction.c:2376 btrfs_set_free_space_cache_v1_active+0xdc/0x4c0 fs/btrfs/free-space-cache.c:4128 btrfs_start_pre_rw_mount+0x7c5/0xb50 fs/btrfs/disk-io.c:3263 open_ctree+0x431a/0x518f fs/btrfs/disk-io.c:3790 btrfs_fill_super+0x21a/0x550 fs/btrfs/super.c:1461 btrfs_mount_root+0x10cb/0x1310 fs/btrfs/super.c:1829 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1531 fc_mount fs/namespace.c:1043 [inline] vfs_kern_mount+0x29d/0x3a0 fs/namespace.c:1073 btrfs_mount+0x6c8/0x18c0 fs/btrfs/super.c:1889 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1531 do_new_mount+0x694/0x1580 fs/namespace.c:3040 path_mount+0x71a/0x1eb0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x734/0x840 fs/namespace.c:3568 __ia32_sys_mount+0xdf/0x140 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit was created at: __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5578 alloc_pages+0xaae/0xd80 mm/mempolicy.c:2285 folio_alloc+0x3e/0x120 mm/mempolicy.c:2295 filemap_alloc_folio mm/filemap.c:971 [inline] __filemap_get_folio+0xe59/0x1b00 mm/filemap.c:1965 pagecache_get_page+0x4a/0x2f0 mm/folio-compat.c:110 find_or_create_page include/linux/pagemap.h:613 [inline] alloc_extent_buffer+0x731/0x2770 fs/btrfs/extent_io.c:4602 btrfs_find_create_tree_block+0x42/0x50 fs/btrfs/disk-io.c:915 btrfs_init_new_buffer fs/btrfs/extent-tree.c:4863 [inline] btrfs_alloc_tree_block+0x36d/0x1f70 fs/btrfs/extent-tree.c:4982 __btrfs_cow_block+0x580/0x1cf0 fs/btrfs/ctree.c:417 btrfs_cow_block+0x7ca/0x9d0 fs/btrfs/ctree.c:572 btrfs_search_slot+0x17b9/0x4630 fs/btrfs/ctree.c:2009 update_dev_stat_item fs/btrfs/volumes.c:7884 [inline] btrfs_run_dev_stats+0x3d3/0x1510 fs/btrfs/volumes.c:7961 commit_cowonly_roots+0x2ac/0x1110 fs/btrfs/transaction.c:1275 btrfs_commit_transaction+0x2235/0x5650 fs/btrfs/transaction.c:2376 btrfs_set_free_space_cache_v1_active+0xdc/0x4c0 fs/btrfs/free-space-cache.c:4128 btrfs_start_pre_rw_mount+0x7c5/0xb50 fs/btrfs/disk-io.c:3263 open_ctree+0x431a/0x518f fs/btrfs/disk-io.c:3790 btrfs_fill_super+0x21a/0x550 fs/btrfs/super.c:1461 btrfs_mount_root+0x10cb/0x1310 fs/btrfs/super.c:1829 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1531 fc_mount fs/namespace.c:1043 [inline] vfs_kern_mount+0x29d/0x3a0 fs/namespace.c:1073 btrfs_mount+0x6c8/0x18c0 fs/btrfs/super.c:1889 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1531 do_new_mount+0x694/0x1580 fs/namespace.c:3040 path_mount+0x71a/0x1eb0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x734/0x840 fs/namespace.c:3568 __ia32_sys_mount+0xdf/0x140 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 CPU: 1 PID: 5038 Comm: syz-executor.1 Not tainted 6.1.0-rc4-syzkaller-62818-gb1376a14297d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 =====================================================