Displaying 6 results from an estimated 6 matches for "spec_ctrl".
2018 Mar 15
0
Good work, Red Hat!
....x86_64.rpm
...
* Sat Feb 10 2018 Jan Stancek <jstancek at redhat.com> [2.6.32-696.23.1.el6]
- [scsi] avoid a permanent stop of the scsi device's request queue (Ewan Milne) [1519857 1513455]
- [x86] retpoline/hyperv: Convert assembler indirect jumps (Waiman Long) [1543022 1535645]
- [x86] spec_ctrl: Upgrade GCC retpoline warning to an error for brew builds (Waiman Long) [1543022 1535645]
- [x86] retpoline: Don't use kernel indirect thunks in vsyscalls (Waiman Long) [1543022 1535645]
- [x86] spec_ctrl: Add a read-only retp_enabled debugfs knob (Waiman Long) [1543022 1535645]
...
2019 Jun 12
1
Speculative attack mitigations
...pclmulqdq monitor est ssse3 cx16 sse4_1 sse4_2 popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase erms xsaveopt dtherm ida arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds
You will note that there is a lack of flags for ssbd, spec_ctrl, intel_stibp, flush_l1d, ibrs, etc.
# for i in /sys/devices/system/cpu/vulnerabilities/* ; do echo -n "$i : "; cat $i ; done
/sys/devices/system/cpu/vulnerabilities/l1tf : Mitigation: PTE Inversion
/sys/devices/system/cpu/vulnerabilities/mds : Vulnerable: Clear CPU buffers attempted, no...
2018 Jan 09
0
Centos 7 Kernel 3.10.0-693.11.6.el7.x86_64 does not boot PV
...subsys hugetlb
[ 0.006160] Initializing cgroup subsys pids
[ 0.006170] Initializing cgroup subsys net_prio
[ 0.006302] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[ 0.006318] ENERGY_PERF_BIAS: View and update with
x86_energy_perf_policy(8)
[ 0.006331] FEATURE SPEC_CTRL Not Present
[ 0.006339] FEATURE IBPB_SUPPORT Not Present
[ 0.006351] CPU: Physical Processor ID: 0
[ 0.006362] CPU: Processor Core ID: 0
[ 0.006373] mce: CPU supports 2 MCE banks
[ 0.006418] Last level iTLB entries: 4KB 512, 2MB 0, 4MB 0
[ 0.006429] Last level dTLB entries: 4KB 51...
2018 Jan 06
2
Centos 7 Kernel 3.10.0-693.11.6.el7.x86_64 does not boot PV
...izing cgroup subsys net_cls
[ 0.006621] Initializing cgroup subsys blkio
[ 0.006630] Initializing cgroup subsys perf_event
[ 0.006639] Initializing cgroup subsys hugetlb
[ 0.006648] Initializing cgroup subsys pids
[ 0.006655] Initializing cgroup subsys net_prio
[ 0.006747] FEATURE SPEC_CTRL Not Present
[ 0.006755] FEATURE IBPB_SUPPORT Not Present
[ 0.006764] CPU: Physical Processor ID: 0
[ 0.006770] CPU: Processor Core ID: 0
[ 0.006783] Last level iTLB entries: 4KB 128, 2MB 4, 4MB 4
[ 0.006790] Last level dTLB entries: 4KB 256, 2MB 0, 4MB 32
[ 0.006797] tlb_flushall_...
2018 Oct 29
2
guestfs launch failed in CentOS 7.5
...group subsys net_prio
[ 0.857224] mce: CPU supports 10 MCE banks
[ 1.161221] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 1.175212] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 1.189209] tlb_flushall_shift: 6
[ 1.198225] Speculative Store Bypass: Vulnerable
[ 1.206223] FEATURE SPEC_CTRL Not Present
[ 1.218208] FEATURE IBPB_SUPPORT Not Present
[ 4.853233] Spectre V2 : Vulnerable: Retpoline without IBPB
[ 13.376012] random: crng init done
[ 101.375237] Freeing SMP alternatives: 24k freed
[ 110.720007] BUG: unable to handle kernel NULL pointer dereference at
000000000000010...
2019 Nov 28
2
virt-df -a xxx.qcow2 failure, after about ten minutes , failed
...0.091186] Initializing cgroup subsys freezer
[ 0.091849] Initializing cgroup subsys blkio
[ 0.092476] Initializing cgroup subsys perf_event
[ 0.093172] Initializing cgroup subsys hugetlb
[ 0.093830] Initializing cgroup subsys pids
[ 0.094446] Initializing cgroup subsys net_prio
[ 0.095208] FEATURE SPEC_CTRL Present
[ 0.095763] FEATURE IBPB_SUPPORT Present
[ 0.097614] mce: CPU supports 10 MCE banks
[ 0.098280] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.099066] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.099846] tlb_flushall_shift: 6
[ 0.130148] Freeing SMP alternatives: 32k freed
[ 0.141606]...