Am 07.09.18 um 06:11 schrieb Reindl Harald: > https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.18.6-Stable-Out > > https://koji.fedoraproject.org/koji/packageinfo?packageID=8 > > kernel-4.18.6-300.fc29 labbott 2018-09-06 01:05:35 > kernel-4.18.5-200.fc28 labbott 2018-09-04 21:12:52 FTR: kernel-4.18.5 shoukd have been replaced by kernel-4.18.6 and i *really* don't get why a build for F29 got fired up but not for F28 there are machines which need it for l1tf, see changelog below "extremely unlikely system" is nonsense, it's an ordinary "HP Compaq Elite 8300 CMT" simply running with 32 GB ---------------- [root@srv-rhsoft:~]$ grep . /sys/devices/system/cpu/vulnerabilities/* /sys/devices/system/cpu/vulnerabilities/l1tf:Mitigation: PTE Inversion /sys/devices/system/cpu/vulnerabilities/meltdown:Mitigation: PTI /sys/devices/system/cpu/vulnerabilities/spec_store_bypass:Mitigation: Speculative Store Bypass disabled via prctl and seccomp /sys/devices/system/cpu/vulnerabilities/spectre_v1:Mitigation: __user pointer sanitization /sys/devices/system/cpu/vulnerabilities/spectre_v2:Mitigation: Full generic retpoline, IBPB, IBRS_FW [root@srv-rhsoft:~]$ uname -r 4.18.6-300.fc29.x86_64 #1 SMP Wed Sep 5 20:11:09 UTC 2018 [root@srv-rhsoft:~]$ cat /etc/redhat-release Generic release 28 (Generic) ---------------- here you go: https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.6 x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM commit b0a182f875689647b014bc01d36b340217792852 upstream. Two users have reported [1] that they have an "extremely unlikely" system with more than MAX_PA/2 memory and L1TF mitigation is not effective. In fact it's a CPU with 36bits phys limit (64GB) and 32GB memory, but due to holes in the e820 map, the main region is almost 500MB over the 32GB limit: [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000081effffff] usable Suggestions to use 'mem=32G' to enable the L1TF mitigation while losing the 500MB revealed, that there's an off-by-one error in the check in l1tf_select_mitigation(). _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx
