Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-27 Thread Torsten Luettgert
On Wed, 22 Apr 2015 10:45:19 +0200 Torsten Luettgert ml-l...@enda.eu wrote: I'll keep this running, and if - when - it has been going for a week (3 times the max uptime without the patch) - I'll give a final notice. So here it is, the final notice: 17:16:36 up 7 days, 4:07, 2 users, load

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-22 Thread Torsten Luettgert
On Mon, 20 Apr 2015 13:24:24 +0200 Torsten Luettgert ml-l...@enda.eu wrote: Can you test the patch below? I'm running it right now and keeping my fingers crossed. Just under two days uptime now, and no crashes. I'm pretty sure you nailed it. I'll keep this running, and if - when - it has

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-20 Thread Torsten Luettgert
On Sun, 19 Apr 2015 18:58:41 +0200 Christoph Hellwig h...@lst.de wrote: This looks like a long standing bug in all three 3ware drivers to me, that the taking the host lock around the host_busy manipulation was hiding. Can you test the patch below? I'm running it right now and keeping my

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-19 Thread Christoph Hellwig
This looks like a long standing bug in all three 3ware drivers to me, that the taking the host lock around the host_busy manipulation was hiding. Can you test the patch below? From b500f76e6f92722d8f1fc0de90961af730320953 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig h...@lst.de Date: Sun, 19

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-17 Thread Torsten Luettgert
On Mon, 13 Apr 2015 20:28:29 +0200 Torsten Luettgert ml-l...@enda.eu wrote: On Mon, 13 Apr 2015 19:41:05 +0200 Christoph Hellwig h...@lst.de wrote: Can you run gdb on your vmlinux file and send the output of the following command in gdb l *(scsi_dma_unmap+0x54) Thanks for looking

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-17 Thread Torsten Luettgert
On Fri, 17 Apr 2015 15:31:16 +0200 Torsten Luettgert ml-l...@enda.eu wrote: On Mon, 13 Apr 2015 20:28:29 +0200 Torsten Luettgert ml-l...@enda.eu wrote: Right now, I'm trying the problematic release, compiled with a newer gcc (4.9.2-6 from Fedora, while using 4.4.7-11 from rhel6 before). It

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-13 Thread Torsten Luettgert
On Mon, 13 Apr 2015 19:41:05 +0200 Christoph Hellwig h...@lst.de wrote: Can you run gdb on your vmlinux file and send the output of the following command in gdb l *(scsi_dma_unmap+0x54) Thanks for looking into it! Here is what gdb says: Reading symbols from

Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

2015-04-13 Thread Christoph Hellwig
On Wed, Apr 08, 2015 at 06:33:33PM +0200, Torsten Luettgert wrote: Hello, I'm getting NULL pointer deref BUGs on a Supermicro machine of mine since 3.17. It occurs at random uptimes, often a few hours after booting (max uptime was 2 days yet). I bisected the problem (took a while); the