element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Members
    Members
    • Benefits of Membership
    • Achievement Levels
    • Members Area
    • Personal Blogs
    • Feedback and Support
    • What's New on element14
  • Learn
    Learn
    • Learning Center
    • eBooks
    • STEM Academy
    • Webinars, Training and Events
    • More
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • More
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • More
  • Products
    Products
    • Arduino
    • Dev Tools
    • Manufacturers
    • Raspberry Pi
    • RoadTests & Reviews
    • Avnet Boards Community
    • More
  • Store
    Store
    • Visit Your Store
    • Choose Another Store
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
Avnet Boards Forums
  • Products
  • Dev Tools
  • Avnet Boards Community
  • Avnet Boards Forums
  • More
  • Cancel
Avnet Boards Forums
Using Xilinx Tools Forum Petalinux 2018.2. Linux. Only one CPU works. Why?
  • Forums
  • Documents
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Avnet Boards Forums requires membership for participation - click to join
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Not Answered
  • Replies 4 replies
  • Subscribers 42 subscribers
  • Views 177 views
  • Users 0 members are here
Related

Petalinux 2018.2. Linux. Only one CPU works. Why?

Former Member
Former Member over 3 years ago

Petalinux 2018.2; picoZed-7020; Linux kernel unable to bring up second CPU (SMP is enabled). Kernel log:

...
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x100000 - 0x100060
Hierarchical SRCU implementation.
smp: Bringing up secondary CPUs ...
CPU1: failed to boot: -1
smp: Brought up 1 node, 1 CPU
SMP: Total of 1 processors activated (666.66 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
...
 
Why kernel failed to activate both CPU?
 
  • Reply
  • Cancel
  • Cancel
Parents
  • Former Member
    0 Former Member over 3 years ago

    The second CPU is working on zedboard 7010 but not on microzed 7020 after kernel 4.xx! Avnet please fix that bug, I need the second core too!

    • Cancel
    • Up 0 Down
    • Reply
    • Verify Answer
    • Cancel
  • Former Member
    0 Former Member over 3 years ago in reply to Former Member

    For some reason bit 7 in the efuse status register is set. Highly likely this is AR65240 case. Older versions of kernel does not check this bit.

    • Cancel
    • Up 0 Down
    • Reply
    • Verify Answer
    • Cancel
  • Former Member
    0 Former Member over 3 years ago in reply to Former Member

    I don't think this is the root cause of the problem, this topic says it meet the efuse criteria: http://zedboard.org/content/efuse-integrity

    Did anyone observe this on the 7010, or only on 7020?

    • Cancel
    • Up 0 Down
    • Reply
    • Verify Answer
    • Cancel
Reply
  • Former Member
    0 Former Member over 3 years ago in reply to Former Member

    I don't think this is the root cause of the problem, this topic says it meet the efuse criteria: http://zedboard.org/content/efuse-integrity

    Did anyone observe this on the 7010, or only on 7020?

    • Cancel
    • Up 0 Down
    • Reply
    • Verify Answer
    • Cancel
Children
No Data
Element14

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2022 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • Facebook
  • Twitter
  • linkedin
  • YouTube