GNU GRUB - Bugs: bug #45794, another EFI PXE boot problem
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bug #45794: another EFI PXE boot problem
Submitter: | Mark Salter <msalter> | ||
Submitted: | Tue 18 Aug 2015 08:39:06 PM UTC | ||
Category: | Network | Severity: | Major |
Priority: | 5 - Normal | Item Group: | None |
Status: | Invalid | Privacy: | Public |
Assigned to: | None | Originator Name: | |
Open/Closed: | Closed | Release: | Git master |
Release: | Reproducibility: | None | |
Planned Release: | None |
Wed 19 Aug 2015 01:49:29 PM UTC, comment #3: |
Andrei Borzenkov <arvidjaar> |
Wed 19 Aug 2015 01:43:34 PM UTC, comment #2: You're right. Sorry for the noise. I was debugging with a Fedora-patched version of upstream which erroneously adds the exclusive flag in grub_efi_net_config. I completely missed that and blamed the wrong party.
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Mark Salter <msalter> |
Wed 19 Aug 2015 03:24:52 AM UTC, comment #1: grub_efi_net_config_real does not open protocol exclusively; where do you see it? The only place where exclusive open happens is open_card.
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Andrei Borzenkov <arvidjaar> |
Tue 18 Aug 2015 08:39:06 PM UTC, original submission:
Bug 45204 fixed a problem where the open protocol by exclusive in efinet.c open_card() was causing firmware to clean the card's receive filters so that incoming packets were blocked. Firmware on a different system (AMI-based vs. EDK2-based on original problem system) is now having the same problem. In this case, the setting of the receive filters in open_card() doesn't happen because firmware is failing to open the protocol (returning EFI_ACCESS_DENIED). That seems to be the right behaviour from my reading of the UEFI spec since the grub already opened the protocol for exclusive use in grub_efi_net_config_real(). Attached is a patch which adds the hw filter setting to grub_efi_net_config_real() and works for both systems. Not sure if this is really the right way to fix the problem or not...
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Mark Salter <msalter> |
Depends on the following items: None found
Items that depend on this one: None found
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2015-08-19 | arvidjaar | Status | None | Invalid | |
Open/Closed | Open | Closed | |||
2015-08-18 | msalter | Attached File | - | Added efinet-enable-filters-in-grub_efi_net_config_real.patch, #34673 | |
Carbon-Copy | - | Added -email is unavailable- |
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Corresponding source code
Closing then.