running kernel 2.6.28 emerge hdapsd .... .... Your kernel has NOT been patched for blk_freeze The ebuild can attempt to patch your kernel like so emerge --config =hdapsd-20060409-r3 emerge --config =hdapsd-20060409-r3 Configuring pgk... We don't have a patch for kernel 2.6.28 yet dmesg | grep libata libata version 3.00 loaded. boot message: no protect entry for sda ! Make sure your kernel is patched with the blk_freeze path How do I resolve the boot message ? Thanks Reproducible: Always
Disk protection has been included in mainline kernel 2.6.28. You don't need to patch anything. Please see Documentation/laptops/disk-shock-protection.txt in the kernel src dir and bug #166166 wranglers, please mark as a dup wrt to bug #166166.
*** Bug 252593 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 166166 ***
Comment #1 From Safak Oekmen 2008-12-26 12:50:33 0000 [reply] ------- There is no instruction how to enable disk protection in kernel 2.6.28 - and no way to get rid of blk_freeze boot message. So please give instructions to solve. This is no duplicate. Comment #3 From Safak Oekmen 2008-12-26 13:05:03 0000 [reply] ------- I have been struggling with this the whole night ! Can you tell me please what kernel config options need to be enabled for the patch? Thanks.
Safak, I understand your problem, but if you check bug 166166 , it seems that hdapsd's main tree versions are very old, and we need someone to take care of a new version for hdapsd. Checkout the work which has been done in that bug, and you may find a working ebuid there. Roy Marples <uberlord[at]gentoo.org> , who ported the package to the main tree, has retired, and the mobile team seems to be a little understaffed. Lets give them some time, and I believe that we will soon have a new shiny version of hdapsd(if there isn't one already, in a external of official overlay). I'm sorry for not being able to support you more.
(In reply to comment #4) Safak, disk protection is built into libata since 2.6.28, there is no need to patch anything or to enable anything. However, the in-portage version of hdaspd is utterly outdated, and doesn't recognize 2.6.28 as "already patched". Also, with 2.6.28 the sysfs interface for disk protection changed. Your outdated hdapsd version doesn't know about the new interface. This is exactly what bug #166166 is about. Get tp_smapi and hdapsd from there (or the sectools overlay) and disk protection will work. Please remember that these are unsupported, 3rd party ebuilds. Also, currently there isn't a GUI monitoring app supporting the new interface [although I'm working on it :) ]. Also have a look at http://www.thinkwiki.org/wiki/HDAPS .
With kernel 2.6.28. I had the same problem. It is a wrong error message that comes from /etc/init.d/hdapsd There, I could find the lines: if [[ ! -e /sys/block/${DISK}/queue/protect ]] ; then eerror "No protect entry for ${DISK}!" eerror "Make sure your kernel is patched with the blk_freeze patch" return 1 fi Obviously, Kernel 2.6.28 doesn't neet that check. So I just commented out those lines. This can be done, by adding a # before every line. Maybe, one also want to write echo -1 > /sys/block/sda/device/unload_heads instead of these lines, to force the disk to enable unloading. Then everything works.
