hello,
I am using beaglebone since a year on a project as an user interface with a touchscreen and I encounter problem of stability. our beaglebone crashs after some hours.
I use an arago distribution provided with the sdk, at revision 2011.09.
We communicate with our cards on an SPI bus. It appars that the spi driver spidev was a source of bug, and now we do SPI with GPIO and we desactivate the driver.
This resolve some problems, but beaglebone continue to crash after some days. We have monitored the cars with usb in ways to have some logs, but the cards crash without giving any infos.
But this weekend one card crash and give kernel panic logs:
[183518.354888] Unhandled fault: external abort on non-linefetch (0x1028) at 0xf9e0003c
[183518.363006] Internal error: : 1028 [#1]
[183518.367095] Modules linked in:
[183518.370361] CPU: 0 Not tainted (3.2.0 #1)
[183518.375030] PC is at omap4_cminst_read_inst_reg+0x3c/0x48
[183518.380737] LR is at omap4_cminst_module_disable+0x24/0x3c
[183518.386566] pc : [<c002a6f0>] lr : [<c002aa88>] psr: a0000093
So I have some questions:
this appars to be linked to kernell, and no modules seems to be related to this crashs. So did new version of the kernel solve the problem? Is there anyways to solve it?
We cannot use defaut image because we use our on LCD screen. We devellop the product before ther release of the 3.5 LCD card.
We cannot sell our product today du to this problem, and we cannot continue devellopment of product based on beaglebone due to this issue.
Cordialy,
Paulin LEDESERT.
