Re: [PATCH] dmaengine: tegra: crash fix observed during dma client(UART) stress testing

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, May 03, 2016 at 02:44:49PM +0000, Shardar Mohammed wrote:
> Thanks for review. Please find my comments inline.
> 
> > On 03/05/16 13:14, Shardar Shariff Md wrote:
> > > During DMA client(UART) stress testing, observed below crash:
> > >
> > > [  167.041591] Unable to handle kernel paging request at virtual
> > > address 00100108 [  167.048818] pgd = ffffffc0de7ee000 [  167.052222]
> > > [00100108] *pgd=0000000000000000 [  167.056513] Internal error: Oops:
> > > 96000045 [#1] PREEMPT SMP [  167.084048] Modules linked in:
> > > [  167.087126] CPU: 0 PID: 1786 Comm: uarttest Tainted: G        W    3.10.33-
> > gb76f6f9 #5
> > > [  167.095040] task: ffffffc0a5ba6ac0 ti: ffffffc094380000 task.ti:
> > > ffffffc094380000 [  167.102529] PC is at tegra_dma_tasklet+0x50/0xf4 [
> > > 167.107148] LR is at tegra_dma_tasklet+0xc0/0xf4 [  167.111767] pc :
> > > [<ffffffc00044acc8>] lr : [<ffffffc00044ad38>] pstate: 800001c5 [
> > > 167.119155] sp : ffffffc094383a60 [  167.122469] x29: ffffffc094383a60
> > > x28: 0000000000000000
> > 
> > This appears to be from quite an old kernel. I assume that this is still valid for
> > the latest mainline?
> [Shardar] Yes.

Please get into the habit of testing your patches against upstream
kernels. Merely testing that it applies is not enough.

All patches that are submitted for mainline inclusion must be *runtime*
tested against a mainline kernel.

Also it would be nice if you could offer steps on how to reproduce, that
way we can extend our testing to make sure we never regress.

Thierry

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux