From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: am35xx memory management issues Date: Wed, 25 Nov 2015 10:37:09 -0800 Message-ID: <20151125183709.GL2517@atomide.com> References: <5644AD53.3020303@nomovok.com> <20151112170659.GL3218@atomide.com> <5645E026.9010002@nomovok.com> <56546CAD.4060007@nomovok.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <56546CAD.4060007@nomovok.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Markku =?utf-8?Q?Ahvenj=C3=A4rvi?= Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-omap@vger.kernel.org KiBNYXJra3UgQWh2ZW5qw6RydmkgPG1hcmtrdS5haHZlbmphcnZpQG5vbW92b2suY29tPiBbMTUx MTI0IDA1OjU3XToKPiBPbiAxMy4xMS4yMDE1IDE1OjA1LCBNYXJra3UgQWh2ZW5qw6Rydmkgd3Jv dGU6Cj4gPiBPbiAxMi4xMS4yMDE1IDE5OjA2LCBUb255IExpbmRncmVuIHdyb3RlOgo+ID4+Cj4g Pj4gQWxzbyBwbGVhc2UgY2hlY2sgaWYgbGVhdmluZyBvdXQgQ09ORklHX1NNUF9PTl9VUCBhZmZl Y3RzIHRoaW5ncy4KPiA+IAo+ID4gQWxyaWdodCwgd2lsbCBkby4KPiAKPiBXZSd2ZSBiZWVuIHRl c3Rpbmcgb21hcDJwbHVzIGRlZmNvbmZpZyB3aXRob3V0IG90aGVyIG9tYXBzIGFuZCB3aXRob3V0 IENPTkZJR19TTVBfT05fVVAuIFNvIGZhciB3ZSBoYXZlbid0IHNlZW4gYW55IHBhbmljcywgYnV0 IEkndmUgaGFkIG9ubHkgYSBmZXcgdW5pdHMgdGVzdGluZyBpdC4KCk9LCgo+IE1lYW53aGlsZSB3 ZSd2ZSBiZWVuIHRlc3Rpbmcgb3VyIGN1c3RvbSBib2FyZCB3aXRoIGEgY29uZmlndXJhdGlvbiB0 aGF0IGlzIHF1aXRlIGNsb3NlIHRvIG9tYXAycGx1cywgaW5jbHVkaW5nIG90aGVyIG9tYXBzIGFu ZCBDT05GSUdfU01QX09OX1VQLiBXZSd2ZSBoYWQgY291cGxlIG9mIHBhbmljcywgc28gaXQgc2Vl bXMgdGhhdCB0aGVzZSBkb2Vzbid0IGFmZmVjdCB0aGUgcHJvYmxlbS4gV2UgaGFkIDE1IHVuaXRz IHJ1bm5pbmcgc3RyZXNzLW5nIGFuZCBpdCB0b29rIH44IGRheXMgdW50aWwgd2Ugc2F3IGZpcnN0 IHBhbmljLCBzbyBpZiBvbWFwMnBsdXMgaXMgYWZmZWN0ZWQgaXQgaXMgcXVpdGUgcmFyZS4KCkht bSBzbyB0byBjb25maXJtLi4gSXMgb21hcDJwbHVzX2RlZmNvbmZpZyBzdGFibGUgb24gYWxsIGJv YXJkcyBpbmNsdWRpbmcgeW91ciBjdXN0b20KYm9hcmQ/Cgo+IEFueSBvdGhlciBzdWdnZXN0aW9u cz8KCk1heWJlIHByb3ZpZGUgb3V0cHV0IG9mIHdoYXQgY2hhbmdlcyBtYWtlIHRoZSBwcm9ibGVt IGhhcHBlbiB3aXRoIHlvdXIgY3VzdG9tCi5jb25maWcgaWYgeW91IGhhdmUgbm90IGFscmVhZHkg ZG9uZToKCiQgbWFrZSBzYXZlZGVmY29uZmlnCiQgY3AgZGVmY29uZmlnIGFyY2gvYXJtL2NvbmZp Z3Mvb21hcDJwbHVzX2RlZmNvbmZpZwokIGdpdCBkaWZmCgpSZWdhcmRzLAoKVG9ueQoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5l bCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6 Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Wed, 25 Nov 2015 10:37:09 -0800 Subject: am35xx memory management issues In-Reply-To: <56546CAD.4060007@nomovok.com> References: <5644AD53.3020303@nomovok.com> <20151112170659.GL3218@atomide.com> <5645E026.9010002@nomovok.com> <56546CAD.4060007@nomovok.com> Message-ID: <20151125183709.GL2517@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Markku Ahvenj?rvi [151124 05:57]: > On 13.11.2015 15:05, Markku Ahvenj?rvi wrote: > > On 12.11.2015 19:06, Tony Lindgren wrote: > >> > >> Also please check if leaving out CONFIG_SMP_ON_UP affects things. > > > > Alright, will do. > > We've been testing omap2plus defconfig without other omaps and without CONFIG_SMP_ON_UP. So far we haven't seen any panics, but I've had only a few units testing it. OK > Meanwhile we've been testing our custom board with a configuration that is quite close to omap2plus, including other omaps and CONFIG_SMP_ON_UP. We've had couple of panics, so it seems that these doesn't affect the problem. We had 15 units running stress-ng and it took ~8 days until we saw first panic, so if omap2plus is affected it is quite rare. Hmm so to confirm.. Is omap2plus_defconfig stable on all boards including your custom board? > Any other suggestions? Maybe provide output of what changes make the problem happen with your custom .config if you have not already done: $ make savedefconfig $ cp defconfig arch/arm/configs/omap2plus_defconfig $ git diff Regards, Tony