Date: Mon, 17 Nov 2025 17:10:27 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 291064] locking bug in fuse_vnop_read() Message-ID: <bug-291064-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291064 Bug ID: 291064 Summary: locking bug in fuse_vnop_read() Product: Base System Version: 15.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: markj@FreeBSD.org CC: asomers@FreeBSD.org I tried to use fsapfsmount to access a volume. I wanted to back up some files from it, but upon reading them I get a panic: VNASSERT failed: locked not true at /root/freebsd/sys/kern/vfs_subr.c:5816 (assert_vop_elocked) 0xfffff8046a050dc0: type VREG state VSTATE_CONSTRUCTED op 0xffffffff84348878 usecount 2, writecount 0, refcount 3598 seqc users 0 hold count flags () flags () v_object 0xfffff800136f3d90 ref 0 pages 103776 cleanbuf 3596 dirtybuf 0 lock type fuse: SHARED (count 1) nodeid: 6, parent nodeid: 0, nlookup: 1, flag: 0x2000 panic: fuse_internal_cache_attrs: vnode is not exclusive locked but should be cpuid = 3 time = 1763398849 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0229c904d0 vpanic() at vpanic+0x136/frame 0xfffffe0229c90600 panic() at panic+0x43/frame 0xfffffe0229c90660 assert_vop_elocked() at assert_vop_elocked+0x86/frame 0xfffffe0229c90690 fuse_internal_cache_attrs() at fuse_internal_cache_attrs+0x47/frame 0xfffffe0229c906f0 fuse_internal_do_getattr() at fuse_internal_do_getattr+0x156/frame 0xfffffe0229c907a0 fuse_vnode_size() at fuse_vnode_size+0x70/frame 0xfffffe0229c907f0 fuse_read_biobackend() at fuse_read_biobackend+0x56/frame 0xfffffe0229c90880 fuse_vnop_read() at fuse_vnop_read+0x15a/frame 0xfffffe0229c908e0 VOP_READ_APV() at VOP_READ_APV+0x55/frame 0xfffffe0229c90910 vn_rdwr() at vn_rdwr+0x304/frame 0xfffffe0229c909d0 vn_generic_copy_file_range() at vn_generic_copy_file_range+0x8ee/frame 0xfffffe0229c90bf0 vn_copy_file_range() at vn_copy_file_range+0x28f/frame 0xfffffe0229c90cd0 kern_copy_file_range() at kern_copy_file_range+0x408/frame 0xfffffe0229c90db0 sys_copy_file_range() at sys_copy_file_range+0x78/frame 0xfffffe0229c90e00 amd64_syscall() at amd64_syscall+0x169/frame 0xfffffe0229c90f30 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0229c90f30 --- syscall (569, FreeBSD ELF64, copy_file_range), rip = 0x765682438da, rsp = 0x765650dcb38, rbp = 0x765650dcc80 --- Timeout initializing vt_vga Uptime: 4m58s Dumping 2388 out of 65217 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91% -- You are receiving this mail because: You are the assignee for the bug.home | help
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