Date: Thu, 10 Dec 2020 14:22:29 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 251729] LOR between isofs and bufwait Message-ID: <bug-251729-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251729 Bug ID: 251729 Summary: LOR between isofs and bufwait Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: gbe@FreeBSD.org The following LOR was reported while running kyua test on arm64. lock order reversal: 1st 0xffffa000d79999f8 isofs (isofs, lockmgr) @ /tank/nfs_public/tiny/src/sys/kern/vfs_syscalls.c :4165 2nd 0xffff0000409378e0 bufwait (bufwait, lockmgr) @ /tank/nfs_public/tiny/src/sys/kern/vfs_bio.c: 1674 lock order isofs -> bufwait attempted at: #0 0xffff000000570d90 at witness_checkorder+0xc54 #1 0xffff0000004d3318 at lockmgr_xlock_hard+0x6c #2 0xffff0000004d3fbc at __lockmgr_args+0x534 #3 0xffff0000005bad10 at getnewbuf+0x48c #4 0xffff0000005b7e34 at getblkx+0x2d0 #5 0xffff0000005b7974 at breadn_flags+0x54 #6 0xffff0000004833d4 at cd9660_blkatoff+0x58 #7 0xffff000000486e10 at cd9660_readdir+0x170 #8 0xffff00000089373c at VOP_READDIR_APV+0x44 #9 0xffff0000005f1a58 at kern_getdirentries+0x1fc #10 0xffff0000005f1c9c at sys_getdirentries+0x24 #11 0xffff0000008241f4 at do_el0_sync+0x7dc #12 0xffff000000803a24 at handle_el0_sync+0x90 --=20 You are receiving this mail because: You are the assignee for the bug.=
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