Server with 3TB Crashing at boot

[Michael Fuckner]

On 03/16/2015 11:53 AM, Konstantin Belousov wrote:
> On Mon, Mar 16, 2015 at 11:36:47AM +0100, Michael Fuckner wrote:
>> On 03/16/2015 11:31 AM, Konstantin Belousov wrote:
>>> On Mon, Mar 16, 2015 at 11:17:08AM +0100, Michael Fuckner wrote:
>>>> Just generated, anything I should test in debugger?
>>>> Else I'll do the same with STABLE next.
>>> With stable, it is only interesting if 'fault' lines are gone.
>>>
>>>>
>>>> http://dedi3.fuckner.net/~molli123/temp/head.txt
>>>>
>>>> doing minimal network traffic causes the kernel to panic.
>>> Please do the following:
>>> gdb kernel.debug (your kernel should be build with makeoptions	DEBUG=-g)
>>> in gdb do
>>> (gdb) list *dmar_bus_dmamap_load_buffer+0x53
>>>
>>
>> http://dedi3.fuckner.net/~molli123/temp/gdb.txt <- is this what you need?
>
> No.  gdb must be run on the live system, at the shell prompt.  You did it
> from the ddb.

root at s4l:~ # gdb head-kernel.debug
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...
(gdb) list *dmar_bus_dmamap_load_buffer+0x53
0xffffffff80e7dd43 is in dmar_bus_dmamap_load_buffer 
(/usr/src-head/sys/x86/iommu/busdma_dmar.c:656).
651		map = (struct bus_dmamap_dmar *)map1;
652		pstart = trunc_page((vm_offset_t)buf);
653		pend = round_page((vm_offset_t)buf + buflen);
654		offset = (vm_offset_t)buf & PAGE_MASK;
655		ma_cnt = OFF_TO_IDX(pend - pstart);
656		ma = malloc(sizeof(vm_page_t) * ma_cnt, M_DEVBUF, map->cansleep ?
657		    M_WAITOK : M_NOWAIT);
658		if (ma == NULL)
659			return (ENOMEM);
660		if (dumping) {
(gdb) root at s4l:~ # logout



kernel crashed instantly with the patches, bu maybe I made a mistake, 
serial was doing strange things. Recompiling now and booting again. I'll 
keep you updated.