Re: My experience with the official release of Sculpt TC
On 06/22/2018 11:14 AM, Norman Feske wrote: Hi Guido, 1. I noticed that the debian iso-download on this 06-21 image was jittery, stopping the now-counter for a second every few MBs. Is that an effect of these patches? I don't think so. I suppose you were testing this with the RAM fs? If yes, the jittery effect may be caused by the successive expansion of the RAM file system. Each time it runs out of RAM quota, it blocks until the sculpt manager explicitly increases the quota. The current quota is displayed as capacity value of the 'ram' storage item. When it stops for a moment, you'll most likely see the value increase shortly afterward, before the download continues. I haven't seen the jitter with the RAM-fs, although I saw it expanding. I noticed it with the freshly expanded GENODE partition on my usb-2 stick. (the previously 'bad' one). Perhaps it's too much people watching netflix... 2. With the old (sculpt-tc) image, the debian download sometimes hang with what looked like a filesystem lockup. No. We rarely (I have seen it only twice in the last two months) observe instabilities of the rump-based file-system server. Once this happens, you may try closing the inspect window (by disabling all 'inspect' buttons), and then opening the inspect window for the ram fs (which should not be affected). Then you can inspect the '/report/log' for file-system-related error messages. It would be cool to secure the log should encounter the problem again. I'll try to replicate it. Wish me luck. Cheers, Guido. ___ Genode users mailing list users@lists.genode.org https://lists.genode.org/listinfo/users
Re: My experience with the official release of Sculpt TC
Hi Guido, thanks for the prompt feedback and the thorough testing! We might update the downloadable image once we update our master branch next time. > Other news: > 1. I noticed that the debian iso-download on this 06-21 image was > jittery, stopping the now-counter for a second every few MBs. Is that an > effect of these patches? I don't think so. Supposing you were testing this with the RAM fs, the jittery effect may be caused by the successive expansion of the RAM file system. Each time it runs out of RAM quota, it blocks until the sculpt manager explicitly increases the quota. The current quota is displayed as capacity value of the 'ram' storage item. When it stops for a moment, you'll most likely see the value increase shortly afterward, before the download continues. > > 2. With the old (sculpt-tc) image, the debian download sometimes hang > with what looked like a filesystem lockup. I could not save the > config/deploy, nor exit vim. Other processes seemed unaffected. Is that > lockup to be expected from the old code? No. We rarely (I have seen it only twice in the last two months) observed instabilities of the rump-based file-system server. Once this happens, you may try closing the inspect window (by disabling all 'inspect' buttons), and then opening the inspect window for the ram fs (which should not be affected). Then you can inspect the '/report/log' for file-system-related error messages. It would be cool to secure the log should encounter the problem again. Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs https://www.genode-labs.com · https://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ___ Genode users mailing list users@lists.genode.org https://lists.genode.org/listinfo/users
Re: My experience with the official release of Sculpt TC
I forgot to sent this to the list for everyone, not just the spooks who tapped the line ;-) On 06/21/2018 01:51 PM, Norman Feske wrote: Hi Guido, thanks for the report and the log. I have a faint suspicion. could you please give the following image a try? http://genode.org/files/nfeske/sculpt-2018-06-21.img Hi Norman, Your hunch was correct, this image runs the expand process correctly on my 'bad' stick. I ran it three times just to make sure, both in usb2 and usb3 sockets. All good. Other news: 1. I noticed that the debian iso-download on this 06-21 image was jittery, stopping the now-counter for a second every few MBs. Is that an effect of these patches? 2. With the old (sculpt-tc) image, the debian download sometimes hang with what looked like a filesystem lockup. I could not save the config/deploy, nor exit vim. Other processes seemed unaffected. Is that lockup to be expected from the old code? It could also have been a memory error I encountered with memtest. But that was transient. I could not pinpoint it to a single DIMM, nor did it occur any time after that. Perhaps this iron is getting old and flaky. Anyway, thanks for the patch. I've attached the log. Cheers, Guido. log-expand-ok-on-img-2018-06-21 Description: Binary data ___ Genode users mailing list users@lists.genode.org https://lists.genode.org/listinfo/users
*****SPAM***** Sculpt TC and multi core virtual machines
Spam detection software, running on the system "obelix.duss.local", has identified this incoming email as possible spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see root@localhost for details. Content preview: Hello list I have played around with the sculpt TC a lot recently, and like it. One thing that I'm curious about is if I do a parallel build inside my virtual machine, that is configured to have two cores, both [...] Content analysis details: (8.7 points, 5.5 required) pts rule name description -- -- 0.2 CK_HELO_GENERICRelay used name indicative of a Dynamic Pool or Generic rPTR 2.9 HELO_DYNAMIC_SPLIT_IP Relay HELO'd using suspicious hostname (Split IP) 0.0 RCVD_IN_SORBS_DUL RBL: SORBS: sent directly from dynamic IP address [83.77.14.147 listed in dnsbl.sorbs.net] 3.6 RCVD_IN_PBLRBL: Received via a relay in Spamhaus PBL [83.77.14.147 listed in zen.spamhaus.org] 1.6 RCVD_IN_BRBL_LASTEXT RBL: No description available. [83.77.14.147 listed in bb.barracudacentral.org] 0.4 RDNS_DYNAMIC Delivered to internal network by host with dynamic-looking rDNS --- Begin Message --- Hello list I have played around with the sculpt TC a lot recently, and like it. One thing that I'm curious about is if I do a parallel build inside my virtual machine, that is configured to have two cores, both vCPU threads run on the same core/hyperthread according to top_view component. Most of the time only CPU 0.0 has any work assigned. I suppose by adding affinity-space and affinity nodes in to the configuration it would be possible to assign a component to a specific core. I'm wondering, if there would be a negative impact on machines with more/less cores if I add the affinity specifications? Is there a possibility to know which hyperthreads run on the same core? best regards, Pirmin --- End Message --- ___ Genode users mailing list users@lists.genode.org https://lists.genode.org/listinfo/users