| Summary: | sys-boot/grub-2.00_beta5 miscalculates certain large lvm extents and starts looping forever during raid detection (plus a few minor patches) | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Doug Nazar <nazard> |
| Component: | [OLD] Core system | Assignee: | Mike Gilbert <floppym> |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | CC: | base-system |
| Priority: | Normal | Keywords: | PATCH |
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
diskfilter_lv_handle_large_extents
handle sorting rc kernels handle user specified -genkernel -kernname's for initramfs detection enable grub-reboot to use partial matches |
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Created attachment 312963 [details, diff]
handle sorting rc kernels
Created attachment 312965 [details, diff]
handle user specified -genkernel -kernname's for initramfs detection
Created attachment 312967 [details, diff]
enable grub-reboot to use partial matches
Please send this stuff upstream. (In reply to comment #2) > Created attachment 312965 [details, diff] [details, diff] > handle user specified -genkernel -kernname's for initramfs detection FYI, upstream may not be open to adding additional cases here unless you can justify it. |
Created attachment 312961 [details, diff] diskfilter_lv_handle_large_extents I just happen to have an extent setup that overflows the grub_size_t variable to_read in grub-core/disk/diskfilter.c, function read_lv(). sector 0 start_extent 0 extent_size 8192 extent_count 524288 This results in a to_read of 0 which then loops forever successfully reading 0 bytes. The other three are a few patches I've been carrying for awhile. The first 2 are small fixes to handle the genkernel builds I make (the --kernname option & sorting for -rc kernels). The last one allows you to specify a substring to grub-reboot to look for a valid entry. Very useful for specifying just the version or git hash while testing things. Might as well offer them up.