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Line 68:
Line 68: − − === Error dump on x32-bit app dumping === − − At this moment we'll support only compat ia32 applications, attempt to dump x32 compat binary should result in error. Line 87:
Line 83: − + − − + − − | fpu00 − |- − | mmx00 − − | fpu01 − + − + − + + + + + + Line 109:
Line 103: − + − Should ensure that they work. Need to be done for both native/compat C/R.+ − + − That's emulated page, not a vma - affects only in /proc/<pid>/maps for restored process. Depends on !TIF_IA32 && !TIF_X32 - Andy got patches for disabling the emulation on per-pid basics, for now I ran tests with <code>vsyscall=none</code> boot parameter because zdtm.py checks maps before/after C/R.+
→Needs to be done (TODO): vdso-fixes
== Needs to be done (TODO) ==
== Needs to be done (TODO) ==
=== Bug with mmaping over 4Gb ===
=== Bug with mmaping over 4Gb ===
! Fail reason
! Fail reason
|-
|-
| sse00
| futex-rl || sys_get_robust_list() should be compat syscall for 32-bit tasks: kernel keeps two different lists: <code>robust_list</code> and <code>compat_robust_list</code> in <code>task_struct</code>
| rowspan="5" | [https://lists.openvz.org/pipermail/criu/2017-February/035666.html fixed by]
|-
|-
| sse20
| autofs || test's bug - hangs without C/R
|-
|-
|-
|-
| futex-rl || sys_get_robust_list() should be compat syscall for 32-bit tasks: kernel keeps two different lists: <code>robust_list</code> and <code>compat_robust_list</code> in <code>task_struct</code>
| vdso01 || [https://lists.openvz.org/pipermail/criu/2017-February/035767.html ia32 version]
|-
|-
| autofs || test's bug - hangs without C/R
| vdso01 || need to add 32-bit vDSO symbols: __kernel_*
|-
|-
| vdso01 || no ia32 version
| vdso01 || fails at fault-inject testing: correct jump trampolines
|}
|}
=== Fault-inject test for vDSO trampolines ===
Should ensure that they work. Need to be done for both native/compat C/R.
[https://lists.openvz.org/pipermail/criu/2017-February/035767.html Here it is]
=== Fixes for older kernels ===
=== Fixes for older kernels ===
For kernels with backported mainline patches for 32-bit C/R (like vzkernel) there are a couple of things to do like different sizes of vdso/vvar (or vvar may not be even present).
For kernels with backported mainline patches for 32-bit C/R (like vzkernel) there are a couple of things to do like different sizes of vdso/vvar (or vvar may not be even present).
=== Fault-inject test for vDSO trampolines ===
=== Kernel patch for vsyscall page ===
That's emulated page, not a vma - affects only in /proc/<pid>/maps for restored process. Depends on !TIF_IA32 && !TIF_X32 - Andy got patches for disabling the emulation on per-pid basics, for now I ran tests with <code>vsyscall=none</code> boot parameter because zdtm.py checks maps before/after C/R.
=== Kernel patch for vsyscall page ===
=== Error dump on x32-bit app dumping ===
At this moment we'll support only compat ia32 applications, attempt to dump x32 compat binary should result in error.
== External links ==
== External links ==