Re: [U-Boot] [PATCH] configs: Lower Lamobo R1 DRAM clock rate to 384 MHz

2018-06-18 Thread Siarhei Siamashka
On Fri, 15 Jun 2018 22:52:39 +0200 Paul Kocialkowski wrote: > When running at 432 MHz, the Lamobo R1 DRAM tends to get corrupted under > stressing workloads. Yes, it is well known that Allwinner devboards tend to have overclocked settings out of the box and poor reliability track record because

Re: [U-Boot] [PATCH] configs: Lower Lamobo R1 DRAM clock rate to 384 MHz

2018-06-18 Thread Paul Kocialkowski
Hi, On Mon, 2018-06-18 at 09:59 +0200, Maxime Ripard wrote: > On Fri, Jun 15, 2018 at 10:52:39PM +0200, Paul Kocialkowski wrote: > > When running at 432 MHz, the Lamobo R1 DRAM tends to get corrupted under > > stressing workloads. Reducing the clock rate to 384 MHz results in > > significantly-imp

Re: [U-Boot] [PATCH] configs: Lower Lamobo R1 DRAM clock rate to 384 MHz

2018-06-18 Thread Maxime Ripard
On Fri, Jun 15, 2018 at 10:52:39PM +0200, Paul Kocialkowski wrote: > When running at 432 MHz, the Lamobo R1 DRAM tends to get corrupted under > stressing workloads. Reducing the clock rate to 384 MHz results in > significantly-improved stability. > > One reliable way to trigger a corruption at 432

[U-Boot] [PATCH] configs: Lower Lamobo R1 DRAM clock rate to 384 MHz

2018-06-15 Thread Paul Kocialkowski
When running at 432 MHz, the Lamobo R1 DRAM tends to get corrupted under stressing workloads. Reducing the clock rate to 384 MHz results in significantly-improved stability. One reliable way to trigger a corruption at 432 MHz is to run I/O-intensive operations on an attached SATA disk. The same op