Date: Fri, 27 Sep 2019 06:37:56 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 240853] Any moderate I/O panics the kernel when MAC_BIBA + multilabel is enabled Message-ID: <bug-240853-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D240853 Bug ID: 240853 Summary: Any moderate I/O panics the kernel when MAC_BIBA + multilabel is enabled Product: Base System Version: 12.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: realkay@mailbox.org /dev/vtbd0p2 on / (ufs, local, noatime, journaled soft-updates, multilabel) Any moderate I/O, such as running a find /, installing a package larger than some arbitrary (and changing) size, or even reloading a tmux session with a couple of windows and panes is enough to trigger this. cpuid =3D 0 time =3D 1569485155 KDB: stack backtrace: #0 0xffffffff80be78d7 at kdb_backtrace+0x67 #1 0xffffffff80b9b4b3 at vpanic+0x1a3 #2 0xffffffff80b9b303 at panic+0x43 #3 0xffffffff80e979f6 at softdep_deallocate_dependencies+0x76 #4 0xffffffff80c4a27f at brelse+0x16f #5 0xffffffff80c4e7fd at buf_recycle+0x2ad #6 0xffffffff80c48a3d at bufkva_reclaim+0x3d #7 0xffffffff80c01899 at vmem_xalloc+0x469 #8 0xffffffff80c013f1 at vmem_alloc+0x31 #9 0xffffffff80c4f805 at bufkva_alloc+0xa5 #10 0xffffffff80c4c429 at getnewbuf+0x319 #11 0xffffffff80c49944 at getblkx+0x484 #12 0xffffffff80c4c0f5 at getblk+0x15 #13 0xffffffff80e8b71c at ffs_balloc_ufs2+0xd1c #14 0xffffffff80ebb496 at ffs_close_ea+0x1b6 #15 0xffffffff811fc93e at VOP_SETEXTATTR_APV+0x7e #16 0xffffffff80c7d05e at vn_extattr_set+0x13e #17 0xffffffff826abbf6 at biba_vnode_create_extattr+0x126 Uptime: 40s Since 12.1-RELEASE is coming, I figured it would be a good time to report t= his. The presence of this bug makes MAC_BIBA unusable, which is a shame. --=20 You are receiving this mail because: You are the assignee for the bug.=
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