Bug 147560
| Summary: | [zfs] [boot] Booting 8.1-PRERELEASE raidz system take ages | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Krzysztof Dajka <alteriks> |
| Component: | kern | Assignee: | Andrey V. Elsukov <ae> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | Flags: | bugmeister:
mfc-stable10?
bugmeister: mfc-stable9? bugmeister: mfc-stable8? |
| Priority: | Normal | ||
| Version: | 8.1-PRERELEASE | ||
| Hardware: | Any | ||
| OS: | Any | ||
I have done few test and narrowed problem to probing usb devices. I have taken following steps: 1) I prepared installed bootcode to 3 devices - 512MB Kingston flash drive - 32MB SD Card - 1MB file (created with dd, mounted with mdconfig, added gpt partition and freebsd-boot slice) booted over pxe 2) All devices had newest bootcode, booting from every device was terrible slow, but sd card was significantly slower than others. 3) I played with my zpool # zpool offline zroot gpt/disk2 4) reboot 5) I booted with every device. Booting from both devices connected to usb bus, was slow. Booting over pxe from 1MB 'drive' with bootcode was very fast as it should be. 6) Booting over pxe with any device attached to usb bus was again slow! Responsible Changed From-To: freebsd-amd64->freebsd-bugs This is a generic zfs boot problem resulting from how the code finds disks for zfs pools. Not sure if we can do any better here. Responsible Changed From-To: freebsd-bugs->freebsd-fs apparently ZFS-specific. State Changed From-To: open->patched Patched in head/ with r239068. Responsible Changed From-To: freebsd-fs->ae Take it. This problem should be fixed in head/, stable/10 and stable/9. |
I'm booting from usb memory stick with updated bootcode. Bootstraping process: BTX loader 1.00 BTX version is 1.01 Console: internal video/keyboard BIOS drive C: is disk0 BIOS drive D: is disk1 BIOS drive E: is disk2 BIOS drive F: is disk3 | It freezes in this state for over 40 seconds and after that boots normally. I have even tried booting over pxe, I created 1M file I have following raidz configuration: $ gpart show => 34 976773101 ada0 GPT (466G) 34 976773101 1 freebsd-zfs (466G) => 34 976773101 ada1 GPT (466G) 34 976773101 1 freebsd-zfs (466G) => 34 976773101 ada2 GPT (466G) 34 976773101 1 freebsd-zfs (466G) => 34 60733 da0 GPT (30M) 34 128 1 freebsd-boot (64K) 162 60605 - free - (30M) $ zpool status pool: zroot state: ONLINE status: The pool is formatted using an older on-disk format. The pool can still be used, but some features are unavailable. action: Upgrade the pool using 'zpool upgrade'. Once this is done, the pool will no longer be accessible on older software versions. scrub: none requested config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 raidz1 ONLINE 0 0 0 gpt/disk0 ONLINE 0 0 0 gpt/disk1 ONLINE 0 0 0 gpt/disk2 ONLINE 0 0 0 How-To-Repeat: Update to 8.1-PRERELEASE, update bootcode