[bug #45204] EFI PXE boot fails for some firmware

[Mark Salter]

URL:
  <http://savannah.gnu.org/bugs/?45204>

                 Summary: EFI PXE boot fails for some firmware
                 Project: GNU GRUB
            Submitted by: msalter
            Submitted on: Thu 28 May 2015 03:11:54 PM GMT
                Category: Network
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Mark Salter
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Git master
         Reproducibility: Every Time
         Planned Release: None

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Details:

The patch for bug #41731 adds an exclusive open of simple network protocol to
fix a problem where firmware would compete with grub for incoming packets.
This has been working for me until I tested on a platform where the firmware
clears the receive filter settings when the network driver is stopped by
grub's exclusive open.

I used the attached patch to fix the problem by saving the original receive
filter settings and restoring them after the exclusive open.




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File Attachments:


-------------------------------------------------------
Date: Thu 28 May 2015 03:11:54 PM GMT  Name:
0001-efinet-save-and-restore-SNP-rx-filters.patch  Size: 65kB   By: msalter
patch to save/restore efinet rx filters
<http://savannah.gnu.org/bugs/download.php?file_id=34114>

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