Messages in this thread | | | From | "Marco Berizzi" <> | Subject | Re: Kernel Panic: too few segs for DMA mapping increase AHC_NSEG | Date | Tue, 27 Nov 2001 20:59:04 +0100 |
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I have applied your patch against kernel 2.4.16 This was the message:
(Stripping trailing CRs from patch.) patching file drivers/scsi/aic7xxx/aic7xxx_linux.c Hunk #1 succeeded at 625 (offset 1 line). Hunk #3 succeeded at 1714 (offset 1 line).
Then I built a kernel with hi mem support, and vfat driver built as a module. reboot machine with new kernel.
Root login, modprobe vfat (modutils 2.4.12) and I always get this message:
Warning: loading /lib/modules/2.4.16/kernel/fs/vfat/vfat.o will taint the kernel: no license
Then I try I mount the vfat filesystem:
mount /dev/sda2 /mnt
and when I try to copy a file from the vfat FS to the linux root FS I get this kernel panic message
code: 0f 0b 80 4f 07 80 8b 03 8b 53 2c 83 ca 82 89 50 14 8b 13 8b too few segs for dma mapping increase ahc-nseg invalid operand: 0000 cpu: 0 eip: 0010 : [<c017f8b5>] tainted: P eflags: 000010046 eax: ffffffff ebx: f7ea58f0 ecx: c0214000 edx: 00000000 esi: 00001000 edi: e3062800 ebp: f7ea1b40 esp: c0215e08 ds: 0018 es: 0018 ss: 0018 process swapper (pid:0, stackpage=c0215000)
<0>Kernel panic: Aiee, killing interrupt handler! in interrupt handler_not syncing.
ebx, edi, ebp values change at every panic.
Hope this help you.
----- Original Message ----- From: "Jens Axboe" <axboe@suse.de> To: "Marco Berizzi" <pupilla@hotmail.com> Cc: <chaffee@cs.berkeley.edu>; <linux-kernel@vger.kernel.org> Sent: Tuesday, November 27, 2001 9:11 AM Subject: Re: Kernel Panic: too few segs for DMA mapping increase AHC_NSEG
> On Tue, Nov 27 2001, Marco Berizzi wrote: > > I have upgraded my PC from 768MB RAM to 1GB. > > I have recompiled the kernel (2.4.16) for hi mem support (4GB). > > > > I have several file system on the same disk (vfat file system). I have > > compiled vfat driver both in the main kernel and as a module. When I > > load the module I issue a > > 'modprobe vfat' and I get this message (only with hi mem kernel > > support): > > > > Warning: loading /lib/modules/2.4.16/kernel/fs/vfat/vfat.o will taint > > the kernel: no license > > I'm using Slackware 8.0. + modutils 2.4.12 > > > > Then if I try to copy a file from that filesystem to the root filesystem > > I get this error: > > > > Kernel panic: too few segs for DMA mappings increase AHC_NSEG > > > > Kernel panic: too few segs for DMA mappings increase AHC_NSEG > > You still haven't applied the patch I sent? Sending the same report > without this extra added infor 2 or 3 times isn't doing any good, sorry. > > -- > Jens Axboe > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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