Date: Fri, 18 Mar 2011 13:11:54 -0700 From: Colin Percival <cperciva@freebsd.org> To: Yuriy Kohut <ykohut@onapp.com> Cc: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org> Subject: Re: 8.2-RELEASE (XEN config) panics on /usr/src/sys/i386/xen/pmap.c:1073 Message-ID: <4D83BC8A.6030600@freebsd.org> In-Reply-To: <FD51089A-0B47-4854-947D-7EB6A94FE771@onapp.com> References: <FD51089A-0B47-4854-947D-7EB6A94FE771@onapp.com>
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On 03/18/11 02:56, Yuriy Kohut wrote: > I got kernel panics while was compiling GHC from ports: > > ===> Configuring for hs-ghc-paths-0.1.0.5_1 > [1 of 1] Compiling Main ( Setup.hs, Setup.o ) > Linking setup ... > gcc: Internal error: Killed: 9 (program ld) > Please submit a full bug report. > See <URL:http://gcc.gnu.org/bugs.html>; for instructions. > *** Error code 1 That's not a kernel panic... > The panic details are (from main console): > > lock order reversal: > 1st 0xc05b08c4 PMAP2 (PMAP2) @ /usr/src/sys/i386/xen/pmap.c:1049 > 2nd 0xc054de04 vm page queue mutex (vm page queue mutex) @ /usr/src/sys/i386/xen/pmap.c:1073 > KDB: stack backtrace: > X_db_sym_numargs(c0363f9a,c03e8cbc,282,0,a3481215,...) at X_db_sym_numargs+0x146 > kdb_backtrace(c010e74b,c0366eaf,c16ca5f0,c16ca178,cca6eab8,...) at kdb_backtrace+0x2a > witness_display_spinlock(c0366eaf,c054de04,c03670bc,c16ca178,c038d96c,...) at witness_display_spinlock+0x75 > witness_checkorder(c054de04,9,c038d96c,431,0,...) at witness_checkorder+0x839 > _mtx_lock_flags(c054de04,0,c038d96c,431,292,...) at _mtx_lock_flags+0xc4 > pmap_extract(c1ae78fc,28202000,4,c035f3ba,c1ae78fc,...) at pmap_extract+0x1c8 > vm_fault_unwire(c1ae784c,28202000,28203000,0,0,...) at vm_fault_unwire+0x32 > vm_map_delete(c1ae784c,1000,bf800000,1,c1ae784c,...) at vm_map_delete+0x17f > vm_map_remove(c1ae784c,1000,bf800000,0,c1b2d7f8,...) at vm_map_remove+0x51 > vmspace_exit(c18f82d0,0,c035bd35,12d,cca6ec60,...) at vmspace_exit+0xbf > exit1(c18f82d0,0,cca6ec8c,c0117f86,c18f82d0,...) at exit1+0x5db > sys_exit(c18f82d0,cca6ecfc,cca6ed38,c0365893,0,...) at sys_exit+0x1d > syscallenter(c18f82d0,cca6ecf4,cca6ecf4,0,c03335ea,...) at syscallenter+0x246 > syscall(cca6ed38) at syscall+0x34 > Xint0x80_syscall() at Xint0x80_syscall+0x22 > --- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x280ff32f, esp = 0xbf7fe72c, ebp = 0xbf7fe738 --- This is a known LOR, but shouldn't cause a kernel panic. -- Colin Percival Security Officer, FreeBSD | freebsd.org | The power to serve Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid
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