Quoting Rui Xiang (rui.xiang@xxxxxxxxxx): > On 2013/8/8 9:37, Gao feng wrote: > > On 08/07/2013 03:55 PM, Eric W. Biederman wrote: > >> > >> Since this still has not been addressed. I am going to repeat Andrews > >> objection again. > >> > >> Isn't there a better way to get iptables information out than to use > >> syslog. I did not have time to follow up on that but it did appear that > >> someone did have a better way to get the information out. > >> > >> Essentially the argument against this goes. The kernel logging facility > >> is really not a particularly good tool to be using for anything other > >> than kernel debugging information, and there appear to be no substantial > >> uses for a separate syslog that should not be done in other ways. > > > > containerizing syslog is not only for iptables, it also isolates the /dev/kmsg, > > /proc/kmsg, syslog(2)... user space tools in container may use this interface > > to read/generate syslog. > > > > But I don't know how important/urgent this containerizing syslog work is, > > Rui Xiang, can you find an important/popular user space tool which uses this > > interfaces to generate kernel syslog? > > > > There are some other cases. Some warnings (bad mount options for tmpfs, > bad uid owner for many of them, etc) emerged in the container should > be exported to the container. Some belong on the host - if they show > a corrupt superblock which may indicate an attempt by the container > to crash the kernel. Like these, Kernel will print out warnings when > userspace in container uses a deprecated something or other, and these > logs should be invisible and specific for current container. > > I can't say this work is terribly compelling and important, but the > impact may be obvious, IMO. Aug 9 21:49:13 sergeh1 kernel: [4644829.672768] init: Failed to spawn network-interface (veth8Ehlvj) post-stop process: unable to change root directory: No such file ricr:aeohgrticr cfe rty444984 n:aetswnw-ta(ht -rrsultheoit: hlrro<4865i:i sntkta(ht ttpe btheoit: hlrrob r6ezt)nrgoadgte644915 c0pt(tyg ti wd a Aug 9 21:49:13 sergeh1 kernel: X3f d-6:uigitra ora Aug 9 22:19:54 sergeh1 kernel: 6[642.175 X3f d-6:mutdflsse ihodrddt oe==99 rfl=lccnanrdfutwt-etn"nm=/a/ah/x/lu-ui/m.AExdu"pi=91 om=mut sye"x3name="/devlo0" lg=r"ol pmc r=3an19pfel-nireu-tntgne/rc/cldudmHEqu d97o=otfy=x"ra=d/o/fg""8b:o vhc)nrgibdte646013 veeMzWe oso d<[4715]xr r1eMc egset Aug -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
