Date: Thu, 23 Jun 2022 10:49:36 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-arm@FreeBSD.org Subject: [Bug 264842] kernel core generated due to VM page fault Message-ID: <bug-264842-7@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264842 Bug ID: 264842 Summary: kernel core generated due to VM page fault Product: Base System Version: Unspecified Hardware: arm OS: Any Status: New Severity: Affects Some People Priority: --- Component: arm Assignee: freebsd-arm@FreeBSD.org Reporter: aadhya@cisco.com We have observed core generated several times due to page fault. Environment : =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D hw.model: Intel(R) Xeon(R) Gold 5118 CPU @ 2.30GHz hw.machine: amd64 hw.ncpu: 24 FreeBSD 11.2-RELEASE Here is the BT : =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D (kgdb) bt #0 0xffffffff806110e7 in doadump () #1 0xffffffff80610f5b in kern_reboot () #2 0xffffffff80611459 in vpanic () #3 0xffffffff80611193 in panic () #4 0xffffffff808967df in trap_fatal () #5 0xffffffff80896839 in trap_pfault () #6 0xffffffff80896028 in trap () #7 0xffffffff8087535e in calltrap () #8 0xffffffff8085c9b1 in vm_page_alloc_after () #9 0xffffffff8085f450 in vm_page_grab_pages () #10 0xffffffff806aa6aa in allocbuf () #11 0xffffffff806a8a99 in getblk () #12 0xffffffff80801b4f in ffs_balloc_ufs2 () #13 0xffffffff8082b39b in ffs_write () #14 0xffffffff80950dc3 in VOP_WRITE_APV () #15 0xffffffff806da6e4 in vn_write () #16 0xffffffff806da223 in vn_io_fault_doio () #17 0xffffffff806d82a1 in vn_io_fault1 () #18 0xffffffff806d6518 in vn_io_fault () #19 0xffffffff8066b330 in dofilewrite () #20 0xffffffff8066af48 in kern_writev () #21 0xffffffff8066aed6 in sys_write () #22 0xfffffe103e0271e0 in ?? () #23 0xffffffff00000001 in ?? () #24 0x0000000000130000 in ?? () #25 0x0000000000010000 in ?? () #26 0x0000000100000000 in ?? () #27 0xfffff80012f3d620 in ?? () #28 0x00000008139dc000 in ?? () #29 0x0000000000010000 in ?? () #30 0xfffffe103e027330 in ?? () #31 0xffffffff80896f3c in amd64_syscall () (kgdb)=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D After adding symbol file the bt gives the following details : (kgdb) bt #0 doadump (textdump=3D1) at pcpu.h:229 #1 0xffffffff80610f5b in kern_reboot (howto=3D260) at ../../../kern/kern_shutdown.c:395 #2 0xffffffff80611459 in vpanic (fmt=3D<value optimized out>, ap=3D<value optimized out>) at ../../../kern/kern_shutdown.c:799 #3 0xffffffff80611193 in panic (fmt=3D<value optimized out>) at ../../../kern/kern_shutdown.c:719 #4 0xffffffff808967df in trap_fatal (frame=3D0xfffffe103e026890, eva=3D90)= at ../../../amd64/amd64/trap.c:875 #5 0xffffffff80896839 in trap_pfault (frame=3D0xfffffe103e026890, usermode= =3D0) at pcpu.h:229 #6 0xffffffff80896028 in trap (frame=3D0xfffffe103e026890) at ../../../amd64/amd64/trap.c:415 #7 0xffffffff8087535e in calltrap () at ../../../amd64/amd64/exception.S:1= 96 #8 0xffffffff8085c9b1 in vm_page_alloc_after (object=3D0xfffff80297ab42d0, pindex=3D307, req=3D<value optimized out>, mpred=3D0xfffff8103310e3d8) at atomic.h:219 #9 0xffffffff8085f450 in vm_page_grab_pages (object=3D<value optimized out= >, pindex=3D304, allocflags=3D<value optimized out>, ma=3D0xfffffe0f81090bc0, count=3D<v= alue optimized out>) at ../../../vm/vm_page.c:3397 #10 0xffffffff806aa6aa in allocbuf (bp=3D0xfffffe0f81090ac0, size=3D<value optimized out>) at ../../../kern/vfs_bio.c:2759 #11 0xffffffff806a8a99 in getblk (vp=3D<value optimized out>, blkno=3D<value optimized out>, size=3D<value optimized out>, slpflag=3D<value optimized out>, slptimeo=3D<value optimized out>, flag= s=3D8) at ../../../kern/vfs_bio.c:3769 #12 0xffffffff80801b4f in ffs_balloc_ufs2 (vp=3D0xfffff8041e470760, startoffset=3D<value optimized out>, size=3D<value optimized out>, cred=3D0xfffff80020140700, flags=3D<value= optimized out>, bpp=3D0xfffffe103e026d28) at ../../../ufs/ffs/ffs_balloc.c:1001 #13 0xffffffff8082b39b in ffs_write (ap=3D0xfffffe103e026e88) at ../../../ufs/ffs/ffs_vnops.c:749 #14 0xffffffff80950dc3 in VOP_WRITE_APV (vop=3D<value optimized out>, a=3D0xfffffe103e026e88) at vnode_if.c:1000 #15 0xffffffff806da6e4 in vn_write (fp=3D<value optimized out>, uio=3D<value optimized out>, active_cred=3D0x130000, flags=3D<value optimized out>, td=3D<value optimized out>) at vnode_if.= h:413 #16 0xffffffff806da223 in vn_io_fault_doio (args=3D0xfffffe103e0270a0, uio=3D0xfffffe103e0271b0, td=3D0xfffff80012f3d620) at ../../../kern/vfs_vnops.c:965 #17 0xffffffff806d82a1 in vn_io_fault1 () at ../../../kern/vfs_vnops.c:1083 #18 0xffffffff806d6518 in vn_io_fault (fp=3D<value optimized out>, uio=3D0xfffff8041e4708e8, active_cred=3D0xfffff80020250078, flags=3D<value optimized out>, td=3D<= value optimized out>) at ../../../kern/vfs_vnops.c:1187 #19 0xffffffff8066b330 in dofilewrite (td=3D0xfffff80012f3d620, fd=3D91, fp=3D0xfffff802151c5b40, auio=3D0xfffffe103e0271b0, offset=3D<value optimized out>, flags=3D0) at file.h:307 #20 0xffffffff8066af48 in kern_writev (td=3D0xfffff80012f3d620, fd=3D91, auio=3D0xfffffe103e0271b0) ---Type <return> to continue, or q <return> to quit--- at ../../../kern/sys_generic.c:506 #21 0xffffffff8066aed6 in sys_write (td=3D<value optimized out>, uap=3D<val= ue optimized out>) at ../../../kern/sys_generic.c:420 #22 0xffffffff80896f3c in amd64_syscall (td=3D0xfffff80012f3d620, traced=3D= 0) at subr_syscall.c:132 #23 0xffffffff80875bad in fast_syscall_common () at ../../../amd64/amd64/exception.S:475 #24 0x0000000801ef5e8a in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D What could be the possible fix for this crash ? Thanks !!! --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-264842-7>