Date: Tue, 3 Aug 2010 15:29:19 +0400 From: pluknet <pluknet@gmail.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: uma_ref_cnt: vm_fault: fault on nofault entry Message-ID: <AANLkTinPtUuBMx-Qov9H4XSKz-dvRFEzPVuEt8pv2jzq@mail.gmail.com> In-Reply-To: <AANLkTilkJtgmWLyFTSNGMXVtwunngG9iu8JJhlCUJQ7C@mail.gmail.com> References: <AANLkTilkJtgmWLyFTSNGMXVtwunngG9iu8JJhlCUJQ7C@mail.gmail.com>
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On 8 July 2010 15:34, pluknet <pluknet@gmail.com> wrote: > Hi. > > 8.0-RELEASE under xen h/w mode. > This is the first time I'm seeing this panic (uptime ~2 weeks). > > http://img38.imageshack.us/img38/9681/screenshot1mm.png > Below is transcribed via OCR from a vnc session. > > db> bt^M > Tracing pid 18908 tid 101404 td 0xc93f9Z40^M > kdb_enter(c0c8dceZ,c0c8dceZ,c0cab939,eb0aZ7e4,Z,...) at kdb_entert0x3a > panic(c0cab939,cl4b3000,l,eb0aZ914,eb0aZ904,...) at panict0xl36 > vm_fault(cl490000,cl4b3000,l,0,c76f3400,...) at vm_fault*0xl97 > trap_pfault(80000,eb0aZal0,8538,eb0aZal0,cfeeaaa0,...) at trap_pfaultt0xZ= 0e > trap(eb0aZa30) at trapt0x455 > calltrap() at calltrap=E2=95=950x6^M > -- trap 0XC, eip =3D =C2=A00xc0af336b, esp =3D =C2=A00xeb0aZa70, ebp =3D = =C2=A00xeb0aZa78 ---^M > uma_find_refcnt(cl47a000,c7elc000,3,Z,c7elc000,...) at uma_find_refcntt0x= 5b > mb_ctor_clust(c7elc000,1000,cf87ce00,Z,f8,...) at mb_ctor_clustt0x9c > uma_zalloc_arg(cl47a000,cf87ce00,Z,dd0001,c798Z400,...) at uma_zalIoc_arg= t0x8a > m_getmZ(0,790c,Z,l,0,...) at m_getmZt0xb3 > m_uiotombuf(eb0aZc58,Z,790c,0,0,...) at m_uiotombuf^0x77 > sosend_generic(cf4c44d4,0,eb0a2c58,0,0,...) at sosend_generic*0x525 > sosend(cf4c44d4,0,eb0aZc58,0,0,...) at sosendt0x3f^M > soo_write(d004d508,eb0aZc58,cdd4f600,0,c93f9Z40,...) at soo_uritet0x63 > dofilewrite(eb0aZc58,ffffffff,ffffffff,0,d004d508,...) at dofilewrite*0x9= 7 > kern_writev(c93f9Z40,6,eb0aZc58,eb0aZc78,l,...) at kern_w|titevt0x58 > write(c93f9Z40,eb0aZcf8,c,c0890ce8,46,...) at urite*0x4f > syscall(eb0aZd38) at syscal+0x3Z5 > Xint0x80_syscall() at Xint0x80_syscal+0x20^M > --- syscall (4, FreeBSD ELF3Z, urite), eip =3D =C2=A00xZ85d4Z53, esp =3D > 0xbfbfealc, ebp =3D^M > 0xbfbfea38 --- > The second panic seen today on the same box at uma_find_refcnt(). I'm unsure if it might be caused by Xen hvm setup. db> bt Tracing pid 12 tid 100035 td 0xc776f480 kdb_enter(c0c8dce2,c0c8dce2,c0cab939,c73678b8,0,...) at kdb_enter+0x3a panic(c0cab939,c14b3000,1,c73679e8,c73679d8,...) at panic+0x136 vm_fault(c1490000,c14b3000,1,0,c7a81760,...) at vm_fault+0x197 trap_pfault(c7bb1748,c7367aa0,c7f7e7bf,c7bb1700,c755c7f8,...) at trap_pfault+0x20e trap(c7367b04) at trap+0x455 calltrap() at calltrap+0x6 --- trap 0xc, eip =3D 0xc0af336b, esp =3D 0xc7367b44, ebp =3D 0xc7367b4c --= - uma_find_refcnt(c147f700,cbe96800,1,1,cbe96800,...) at uma_find_refcnt+0x5b mb_ctor_clust(cbe96800,800,c7f2a700,1,c0dd7b40,...) at mb_ctor_clust+0x9c uma_zalloc_arg(c147f700,c7f2a700,1,c776f000,0,...) at uma_zalloc_arg+0x8a igb_get_buf(c0dd6e40,c0dd6e40,c0dd6e40,c7367c38,c08a9d00,...) at igb_get_buf+0x146 igb_rxeof(c775f540,0,0,c775f5c0,c7762a00,...) at igb_rxeof+0x2b0 igb_msix_rx(c7760a00,0,109,e3c02e88,2a1bf,...) at igb_msix_rx+0x29 intr_event_execute_handlers(c755c7f8,c7762a00,c0c8ab0b,4f6,c7762a70,...) at intr_event_execute_handlers+0x14b ithread_loop(c7772930,c7367d38,0,0,0,...) at ithread_loop+0x6b fork_exit(c0861b20,c7772930,c7367d38) at fork_exit+0x91 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip =3D 0, esp =3D 0xc7367d70, ebp =3D 0 --- --=20 wbr, pluknet
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