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[00:06:52] <gitomat> [illumos-gate] 11501 Scroll Lock translation to control sequence is patently unhelpful -- Joshua M. Clulow <josh at sysmgr dot org>
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[05:41:27] <jbk> richlowe: would that be a prelude to getting rid of some amount of the 9983574 knobs we currently have?
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[06:02:31] <richlowe> jbk: probably
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[08:50:00] <tsoome> any more eyes for https://illumos.org/rb/r/2171/ - I am starting RTI build:)
[08:52:50] <toasterson> tsoome unforutnately not but I am have a question about 11471
[08:53:15] <tsoome> yes?
[08:54:42] <toasterson> I have a production zpool on vioblk disk. Does 11471 imply that up until now all vioblk forwarded disks applied the wrong ashift?
[08:55:00] <toasterson> meaning performance is bad?
[08:55:23] <tsoome> no and maybe.
[08:55:51] <tsoome> if your backing device is 512/512 then it is no.
[08:56:33] <tsoome> if your backing device is 512/X, and zfs does use 512, then maybe.
[08:58:41] <tsoome> the vioblk is doing all IO in terms of 512B blocks, and the issue in 11471 is that if the backing device is using larger blocks, our current implementation is doing wrong because we do not translate large blocks to 512B ones.
[09:00:23] <tsoome> vioblk protocol does define its internal IO in terms of 512B blocks even if we announce device to have larger logical/physical blocks.
[09:02:06] <toasterson> ah so once that patch lands if we have a 512/X device then we get a performance fix.
[09:02:19] <toasterson> if it's 512/512 everything stays normal
[09:02:34] <toasterson> no need to adapt ashift?
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[09:04:11] <tsoome> that maybe in terms of performance is coming from the fact that if we will generate physical block size IO, the performance will depend on how we translate those incoming blocks to actual IO in vioblk protocol.
[09:06:26] <toasterson> ah ok so if i replace disks after applying the patch I won't get in trouble because of changing alignment. it's only the vioblk protocol that has a fixed block size of 512
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[09:07:21] <toasterson> I am wondering how qemu writes that to the disk though. as they would need to translate it to the correct block size?
[09:07:27] <tsoome> logically, using logical block size (like 512/4096) could affect performance more as in ideal world we should perform IO by full physical blocks. for example, if your backing space is provided by (default) 8k volrecordsize zvol, your virtual disk is 512/8k, but to get your 512B block to physical disk, we need to read 8k and write 8x.
[09:07:53] <tsoome> s/8x/8k/
[09:09:10] <tsoome> however, if the writes are async, the system might be able to collect sequence of those 512B writes to perform aggregate write, and then there is almost no penalty…
[09:09:47] <tsoome> this is the reason why disk arrays are using quite large block sizes with storage pools.
[09:10:34] <toasterson> hmm I was actaully hoping for a boost in performance 🙂 seeing that the pool really is slow at times. But That might aswell be the disks.
[09:13:04] <tsoome> yes, there are some things we really do not do atm
[09:17:41] <toasterson> But I am happy with it not getting worse. The most changes I am looking forward for are probably Leftwings devid updates on empty serial tags.
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[09:20:26] <tsoome> oh, actually I was wrong, we do build vdev asize based on physical block size already:)
[09:20:50] <tsoome> it is good to re-check the sources from time to time.
[09:20:56] <tsoome> :)
[09:21:32] <toasterson> ah so asize would be correct in any case 🙂 thats good news.
[09:21:53] <tsoome> ashift, not asize:)
[09:21:55] <tsoome> :D
[09:22:22] <toasterson> XD
[09:22:30] <tsoome> too many a-things:)
[09:23:09] <tsoome> anyhow, back to re-writing installboot.
[09:23:28] <toasterson> EFI support?
[09:23:33] <tsoome> yes
[09:23:47] <toasterson> yay!!!
[09:39:28] <wilbury> moin
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[10:05:34] <tsoome> moin
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[10:15:47] <jlevon> tsoome: it would be amazing if we could replace format_image with a real installboot hint hint :)
[10:18:48] <tsoome> yes, i remember that:)
[10:23:03] <leoric> do we support privileges='basic,!file_link_any,!proc_info,!proc_session' in method_credential SMF specification?
[10:23:37] <jlevon> off the top of my head, I think that should work.
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[10:31:37] <wilbury> leoric: privileges works. there was a bug when they worked only when all attributes were set for given property group and i'm not sure if it's fixed or not.
[10:31:40] <wilbury> but i'd say yes
[10:34:20] <jlevon> hah wow that old bug!
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[14:54:15] <gitomat> [illumos-gate] 11281 XHCI polled mode support for USB keyboards -- Matthias Scheler <matthias.scheler at wdc dot com>
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[15:41:49] <wiedi> danmcd: re https://github.com/illumos/illumos-gate/pull/58 - unrelated to the whence issue, woudn't it be nicer to have the script be executable so one could start the build with "./usr/src/tools/scripts/nightly.sh illumos.sh"? Is this a bad idea for some reason?
[15:44:03] <jlevon> if we're going to do that, let's just move it to top-level
[15:44:20] <jlevon> instead of having some .sh files be generated, some not.
[15:44:50] <wiedi> that would be great too
[15:45:58] <jlevon> fine by me
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[17:50:41] <richlowe> if we're killing stdenv.sh (and we must, to do the above), can we finally default MULTI_PROTO on like sane people? :)
[17:52:14] <jlevon> I don't really know what stdenv.sh is actuallyfar
[17:52:15] <jlevon> for
[17:52:34] <richlowe> it gets spliced into both nightly and bldenv
[17:52:46] <richlowe> running nightly.sh and running nightly isn't the same, because of that.
[17:53:05] <richlowe> I think the number of people who remember that might be 1 :\
[17:54:33] <jlevon> wtf
[17:54:35] <richlowe> as for why that was worth it to default two variables, I don't know or don't remember.
[17:54:36] <jlevon> why does it do that
[17:55:26] <jlevon> why the heck aren't they in illumos.sh instead
[17:57:02] <richlowe> huh, the only relevant one (MULTI_PROTO) actually is
[17:57:52] <jlevon> weirder
[17:57:52] <richlowe> Because I put it there
[17:57:58] <richlowe> and somehow didn't remove the include
[17:58:00] <richlowe> what a loser.
[17:58:18] <jlevon> haha :)
[17:58:52] <richlowe> wiedi, danmcd: so yeah, do what jlevon said, but also remove the stddenv.sh crud :)
[17:59:03] <jlevon> be today's hero
[18:01:15] <wiedi> heh, this just shows that there is a lot of stuff in there that I don't yet understand I'd have to be very careful about ;)
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[20:22:18] <MilkmanDan> Anyone hear where Bryan is headed next? http://dtrace.org/blogs/bmc/2019/07/31/ex-joyeur/
[20:31:46] <dsockwell> the blog post seems to suggest funemployment so maybe it's up in the air
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[20:44:31] <domag02> hi all!
[20:47:18] <toasterson> Hellooo o/
[20:51:23] <domag02> tsoome: I late a bit with my review, sorry (11453 zpool: NULL pointer errors)
[21:07:53] <tsoome> np:)
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[21:12:39] <domag02> tsoome: or an another solution: better libdiskmgt API, with less "hacks"
[21:32:20] <tsoome> yes, still I’d rather see such changes done as next step(s).
[21:34:40] <domag02> tsoome: I agree.
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[22:50:31] <KungFuJesus> does anyone have any idea why NFSv4 mounts might fail over a site to site IPSEC link, but not NFSv3?
[22:50:48] <KungFuJesus> Server is running openindiana (hipster)
[22:51:25] <LeftWing> How is the IPSEC link terminated?
[22:51:48] <KungFuJesus> terminated in what sense?
[22:51:59] <LeftWing> Is it... NFS sever --ethernet--> router/IPSEC thing --tunnel--> router/IPSEC thing --ethernet--> NFS client
[22:52:00] <LeftWing> ?
[22:52:15] <KungFuJesus> yes
[22:52:30] <LeftWing> What's the MTU of the IPSEC tunnel
[22:53:22] <KungFuJesus> couldn't tell at the moment, I don't have access to the ASA
[22:53:26] <KungFuJesus> is there a way to tell?
[22:53:58] <LeftWing> You could try an have ping send a big packet and not allow it to fragment, probably?
[22:54:17] <LeftWing> Also, what's the failure in mounting exactly -- does it just time out?
[22:54:26] <KungFuJesus> ah, I'll give that a shot, one sec. Does it matter which endpoint to initiate the ping from?
[22:54:36] <LeftWing> I would hope that it doesn't
[22:55:14] <KungFuJesus> it just sits there forever (Linux client) dmesg gave me this eventually, though: nfs4_discover_server_trunking unhandled error -512. Exiting with error EIO
[22:57:41] <KungFuJesus> no fragment pings start to fail at 1411 bytes
[22:58:30] <LeftWing> And what if you ping another local network host
[22:58:38] <LeftWing> (instead of over the tunnel)
[22:59:06] <richlowe> LeftWing: Dan's gonna have Words when he sees how you capitalize IPsec.
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[22:59:48] <KungFuJesus> seems to be teh same thing astylinski_admin@antonio:/home/rhubbard$ ping -M do -s 1411 infosphere
[22:59:51] <KungFuJesus> PING infosphere.internal.etegent.com (192.168.24.224) 1411(1439) bytes of data.
[23:00:02] <KungFuJesus> 1418 bytes from 192.168.24.224: icmp_seq=1 ttl=253 time=27.4 ms
[23:00:14] <KungFuJesus> ah crap, sorry, that's over the tunnel
[23:00:25] <KungFuJesus> richlowe: eh, that was maybe my bad
[23:00:38] <KungFuJesus> I initially spelled it that way
[23:01:31] <KungFuJesus> seems to be 1472 (1480 after overhead I suppose): 1480 bytes from infosphere-dayton.internal.etegent.com (192.168.8.9): icmp_seq=1 ttl=255 time=0.333 ms
[23:01:52] <KungFuJesus> so, is the issue that they have some don't fragment bit set in the established tunnel?
[23:04:40] <KungFuJesus> I tried changing rsize and wsize to something a bit lower, it's still hanging trying to mount nfsv4, though
[23:05:28] <LeftWing> I don't know exactly what the issue is, but MTUs of tunnels can sometimes result in weird hanging of various TCP bits
[23:06:04] <LeftWing> Do you have an identical Linux client that is _not_ on the far side of the tunnel which _is_ working?
[23:06:20] <LeftWing> It could presumably also be firewall rules in the tunnel device, even
[23:06:50] <LeftWing> I would "snoop" on the NFS server and look at the traffic you get from the remote client, to see if it's arriving, etc
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[23:08:23] <KungFuJesus> LeftWing: not that I know of, no. I think the resolution I've had for a while now has been to give up and use v3, which surely isn't working perfectly either, but it gets me access to the files
[23:08:50] <KungFuJesus> I can snoop, I might try switching mountproto to be udp first, though
[23:09:55] <KungFuJesus> hmm, that didn't seem to help. Which parameters should I pass to snoop to listen for this?
[23:13:12] <LeftWing> So, if the NIC is "igb0", and the remote IP is "1.2.3.4", you could try something like.. snoop -r -d igb0 host 1.2.3.4
[23:13:49] <LeftWing> snoop can also save packets to a file that can be loaded for deeper analysis using Wireshark
[23:13:53] <LeftWing> With "-o FILE"
[23:14:04] <richlowe> the best bit of an IP tunnel is gene wilder steering the boat.
[23:15:11] <KungFuJesus> I get the following: https://pastebin.com/qKzLMdeq
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[23:27:47] <LeftWing> 192.168.8.19 is on the far side of the tunnel? The MSS of 1380 implies that maybe the tunnel is capping the MSS of packets that go through, which probably helps.
[23:29:36] <KungFuJesus> LeftWing: yes, that's the remote end
[23:31:40] <KungFuJesus> Also, how do I force the bootloader to update? I think this thing may still have grub and I'd like it to use the new bootloader so that I won't have any issues going back a boot environment after an update
[23:32:28] <richlowe> it should have updated itself, I think.
[23:32:38] <richlowe> I'm not sure how to force it to, tsoome would know.
[23:32:56] <KungFuJesus> Yeah, I think at one point he gave me the command to do it, but I can't find it now
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   August 2, 2019
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