Date: Tue, 02 Aug 2005 00:09:13 +1000 From: Peter Grehan <grehan@freebsd.org> To: Dario Freni <saturnero@freesbie.org> Cc: current@freebsd.org, fs@freebsd.org Subject: Re: Rockridge extension not enabled when / is cd9660, boot fails Message-ID: <42EE2D09.7010505@freebsd.org> In-Reply-To: <42EDFA77.1080704@freesbie.org> References: <42EB7B3E.3030308@freebsd.org> <42ED67A5.8060102@freesbie.org> <42EDFA77.1080704@freesbie.org>
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> calltrap() at calltrap+0x5 > --- trap 0xc, eip = 0xc04fc828, esp = 0xc838bc84, ebp = 0xc838bca4 --- > ata_pio_read(c1452578,800,129,c13e4200,c13f1c00) at ata_pio_read+0x78 > ata_end_transaction(c1452578) at ata_end_transaction+0x8b8 > ata_interrupt(c12ef600) at ata_interrupt+0xdf > ithread_loop(c12fa800,c838bd38,c12fa800,c065ad88,0) at ithread_loop+0x11c > fork_exit(c065ad88,c12fa800,c838bd38) at fork_exit+0xa0 > fork_trampoline() at fork_trampoline+0x8 > --- trap 0x1, eip = 0, esp = 0xc838bd6c, ebp = 0 --- > panic: vm_fault: fault on nofault entry, addr: c708f000 I suspect this is a bug somewhere in qemu - the ATA driver is getting a page fault in kernel mode while it is holding a lock, and the VM code then gets a LOR as it tries to determine if the fault is expected or not. later, Peter.
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