<p dir="ltr">AFAIK seccomp support only works from 4.2 onwards. Regarding dirty tracking I can't remember how to check it but you can check how CRIU runs the check. </p>
<p dir="ltr">sent from mobile</p>
<div class="gmail_quot<blockquote class=" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">4.1.16 custom,.<div><br></div><div>Any ideas which flags they are? running on ARMv7 hardware here :-)</div><div><br></div><div>Ashley</div><div><br><div><blockquote type="cite"><div>On 30 Jan 2016, at 21:16, Marcos Lilljedahl <<a href="mailto:marcosnils@gmail.com" target="_blank">marcosnils@gmail.com</a>> wrote:</div><br><div><p dir="ltr">Which kernel version are you running?.</p><p dir="ltr">Make sure that dirty tracking and seccomp is enabled. Apart from that you should be OK.</p><p dir="ltr">sent from mobile</p>
<div class="gmail_quote">On Jan 30, 2016 6:11 PM, "Ash Clark" <<a href="mailto:ashwclark@gmail.com" target="_blank">ashwclark@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">I appear to be a few steps forward…<div><br></div><div>sudo criu check —ms reveals:</div><div><br></div><div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">[root@kube-worker01 alarm]# criu check --ms</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Warn (cr-check.c:624): Skipping PTRACE_O_SUSPEND_SECCOMP check</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Warn (cr-check.c:672): Skipping PTRACE_SECCOMP_GET_FILTER checkWarn (cr-check.c:696): Dirty tracking is OFF. Memory snapshot will not work.</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Looks good.</div><div><br></div><div>Just concerned that there appears to be an issue wit sec comp and memory snapshot that may hurt further down the line.</div><div><br></div><div>Running on a raspberry Pi 2 B+ with arch linux and kubernetes. Trying to get p.haul to work is the underlying task</div><div><br></div><div>Ashley</div><div><br><blockquote type="cite"><div>On 30 Jan 2016, at 21:09, Marcos Lilljedahl <<a href="mailto:marcosnils@gmail.com" target="_blank">marcosnils@gmail.com</a>> wrote:</div><br><div><p dir="ltr">Ash what so you get with sudo CRIU check -ms?</p><p dir="ltr">sent from mobile</p>
<div class="gmail_quote">On Jan 30, 2016 5:46 PM, "Ash Clark" <<a href="mailto:ashwclark@gmail.com" target="_blank">ashwclark@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Hi,<div><br></div><div>Trying to set up CRIU on arch linux / ARMv7 platform.</div><div><br></div><div>I have compiled a custom kernel with the noted requirements in the documentation, but when I run criu check, I receive the following:</div><div><br></div><div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">criu]# criu check</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (libnetlink.c:37): ERROR -2 reported by netlink (No such file or directory)</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (libnetlink.c:37): ERROR -2 reported by netlink (No such file or directory)</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (libnetlink.c:37): ERROR -2 reported by netlink (No such file or directory)</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (libnetlink.c:37): ERROR -2 reported by netlink (No such file or directory)</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (cr-check.c:634): Kernel doesn't support PTRACE_O_SUSPEND_SECCOMP</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (cr-check.c:683): Dumping seccomp filters not supported: Input/output error</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Warn (cr-check.c:696): Dirty tracking is OFF. Memory snapshot will not work.</div><div style="margin:0px;line-height:normal;font-family:'Andale Mono';color:rgb(41,249,20);background-color:rgb(0,0,0)">Error (tun.c:59): Can't check tun support: No such file or directory</div></div><div><br></div><div>If anyone can help, I would be entirely grateful.</div><div><br></div><div>Thanks</div><div><br></div><div>Ashley</div></div><br>_______________________________________________<br>
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