From mboxrd@z Thu Jan 1 00:00:00 1970 From: Larkin Lowrey Subject: Re: raid5-cache: Cannot get enough stripes due to memory pressure. Recovery failed. Date: Sun, 5 Nov 2017 10:20:05 -0500 Message-ID: <7545b7cd-8b8d-6264-d6d7-eeed6b852ee9@gmail.com> References: <59FDFEBE.3000904@youngman.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <59FDFEBE.3000904@youngman.org.uk> Content-Language: en-US Sender: linux-raid-owner@vger.kernel.org To: Wols Lists , linux-raid List-Id: linux-raid.ids The rescue shell had the full kernel loaded and all 16GB was available so that's not the issue. I booted off a USB drive and was able to get both arrays to assemble. The kernel was much older, 4.11.8-300.fc26.x86_64. After a clean shutdown and reboot to a 4.13.X kernel I no longer get dumped into the recovery shell but the boot process hangs. The 8 drive array gets assembled but the hang happens immediately after all of the drives for the 12 drive array are detected so I suspect the hang happens during the assembly of the 12 drive array. When I go back to boot off the USB drive (4.11.8 kernel) both assemble just fine. Could there be regression between 4.11.8 and 4.13.X? I no longer have full boot images with older kernels than 4.13 so I can't easily test to identify the point of regression. --Larkin On 11/4/2017 1:54 PM, Wols Lists wrote: > On 04/11/17 16:13, Larkin Lowrey wrote: >> The prior shutdown could have been unclean for the array. The shutdown >> process got stuck and I eventually had to use the reset button. >> >> I have a second (8 drive) raid6 array on this host that has a 2GB >> journal and it won't assemble either. >> >> Kernel: 4.13.10-100.fc25.x86_64 >> >> What can I do? Do I need more RAM? > You're in the recovery shell ... does/can that use all available ram? > (Like DOS needed special drivers to use ram above 1MB). So I doubt you > need more ram. > > Get a rescue disk of some sort, boot into that, so you've got a full > working linux off DVD/CD, and see if you can assemble the arrays from there. > > Cheers, > Wol > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html