#ceph IRC Log

Index

IRC Log for 2012-09-22

Timestamps are in GMT/BST.

[0:20] * SvenDowideit (~SvenDowid@203-206-171-38.perm.iinet.net.au) has joined #ceph
[0:22] * lxo (~aoliva@lxo.user.oftc.net) Quit (Ping timeout: 480 seconds)
[0:25] * benpol (~benp@garage.reed.edu) has joined #ceph
[0:27] * sagelap1 (~sage@38.122.20.226) has joined #ceph
[0:29] * sagelap (~sage@2607:f298:a:607:64c8:48b:8f5f:4504) Quit (Read error: Connection reset by peer)
[0:32] * lxo (~aoliva@lxo.user.oftc.net) has joined #ceph
[0:33] <elder> sagelap1, is it easy to turn of CRC32?
[0:33] <elder> I guess I should ask nhm
[0:33] <sagewk> yeah, moun t-o nocrc iirc
[0:34] <sagewk> maybe nodatacrc
[0:34] * nhm (~nhm@173-11-35-162-Minnesota.hfc.comcastbusiness.net) has joined #ceph
[0:34] <elder> OK.
[0:34] <elder> I may have found something.
[0:35] <elder> It is nocrc
[0:36] <sagewk> elder: that crc line looks promising
[0:36] <darkfaded> does the newer intel cpu's crc32c pick ok on that?
[0:36] <sagewk> fwiw, i don't see why teh kunmap isn't in the previous block.
[0:37] <sagewk> i think that sendpage call used to be a normal write that required it to be kmapped
[0:37] <darkfaded> becaue they "can" do it in hardware, just dont know if it also happens there
[0:37] <sagewk> http://fpaste.org/QC3k/
[0:37] <elder> OK, well definitely found something...
[0:38] <sagewk> darkfaded: we use teh kernel crc32c routines, which use the new instructions now
[0:38] * lxo (~aoliva@lxo.user.oftc.net) Quit (Remote host closed the connection)
[0:38] <elder> It may not be the 32-bit problem, but I'm able to write my file from 32-bit mode now.
[0:38] <darkfaded> sagewk: wow, great
[0:38] <sagewk> elder: sweet. that patch should go upstream to linus now
[0:38] <elder> Even better.
[0:39] <sagewk> for 3.6. well, after some testing :)
[0:39] <sagewk> good catch!
[0:39] <nhm> What are you guys talking about regarding crc32c?
[0:39] <sagewk> a bug in the messenger code that calls crc32c
[0:39] <elder> I think the structure of that section (with the separate kunmap) was a holdover from before it got isolated down to the one block that needed to map the page.
[0:39] <sagewk> yep
[0:40] <nhm> sagewk: unnecessarily?
[0:40] <elder> OK, almost done writing 8GB. Then I'll read it back to verify the 32-bit clipping is still there.
[0:40] <sagewk> incorrectly
[0:40] * lxo (~aoliva@lxo.user.oftc.net) has joined #ceph
[0:40] <nhm> ah
[0:41] <sagewk> not actaully related to crc32c itself
[0:41] <nhm> ok
[0:41] <pentabular> aw, you guys still care about 32-bit!
[0:41] <pentabular> that warms my tubes! :)
[0:41] <elder> We'd run on PDP-11 if we had one.
[0:41] <elder> (And if we could fit it into 64KB)
[0:42] <pentabular> lol.. cough..
[0:44] <elder> Very interesting.
[0:44] <elder> That file reads back fine from both environments.
[0:46] <elder> Ahh, but after dropping caches I get the problem when reading back, at offset 4GB
[0:46] <elder> (in 32-bit environment)
[0:47] * MikeMcClurg (~mike@93-137-170-239.adsl.net.t-com.hr) Quit (Quit: Leaving.)
[0:50] <pentabular> elder: that sounds normal, actually
[0:50] <elder> Well it shouldn't be.
[0:50] <pentabular> I wouldn't expect a 32-bit system to cope with offsets that large
[0:50] <elder> It can if it has a 64-bit file offset.
[0:51] <pentabular> oh yeah..
[0:51] * pentabular slaps self in face
[0:51] <elder> Don't hurt yourself.
[0:52] <pentabular> nah.. getting lightheaded. need to feed.
[0:53] <pentabular> ttfn
[0:53] * pentabular (~sean@adsl-70-231-141-128.dsl.snfc21.sbcglobal.net) has left #ceph
[0:55] * loicd (~loic@82.235.173.177) Quit (Quit: Leaving.)
[0:55] <elder> sagelap1, can I have your implicit reviewed-by?
[0:55] <elder> The change is basically what you suggested.
[0:55] * loicd (~loic@magenta.dachary.org) has joined #ceph
[0:58] * MikeMcClurg (~mike@93-137-170-239.adsl.net.t-com.hr) has joined #ceph
[1:04] <elder> sagelap1, I've pushed it as testing-next. I'm going to try to fire off a test, but I'm headed out for a bit shortly. So if you want, please do whatever testing you like and push it yourself to testing (and then to Linus, as you see fit).
[1:05] * MikeMcClurg (~mike@93-137-170-239.adsl.net.t-com.hr) Quit (Quit: Leaving.)
[1:06] * lxo (~aoliva@lxo.user.oftc.net) Quit (Remote host closed the connection)
[1:08] * lxo (~aoliva@lxo.user.oftc.net) has joined #ceph
[1:12] * benpol (~benp@garage.reed.edu) has left #ceph
[1:16] * jjgalvez (~jjgalvez@12.248.40.138) Quit (Quit: Leaving.)
[1:33] * jlogan1 (~Thunderbi@72.5.59.176) Quit (Ping timeout: 480 seconds)
[1:46] * cblack101 (c037362a@ircip2.mibbit.com) Quit (Quit: http://www.mibbit.com ajax IRC Client)
[1:51] * danieagle (~Daniel@177.43.213.15) Quit (Quit: Inte+ :-) e Muito Obrigado Por Tudo!!! ^^)
[2:11] <sagewk> elder: let's send it through qa tonight. if it's ok, i'll stick it master on top of -rc whatever and send to linus.
[2:24] * yehudasa (~yehudasa@2607:f298:a:607:d6be:d9ff:fe8e:174c) Quit (Quit: Ex-Chat)
[2:29] * EmilienM (~EmilienM@55.67.197.77.rev.sfr.net) Quit (Remote host closed the connection)
[2:30] * BManojlovic (~steki@212.200.241.157) Quit (Quit: Ja odoh a vi sta 'ocete...)
[2:34] * sagelap (~sage@37.sub-70-197-139.myvzw.com) has joined #ceph
[2:34] * sagelap1 (~sage@38.122.20.226) Quit (Ping timeout: 480 seconds)
[2:42] * joshd (~joshd@2607:f298:a:607:221:70ff:fe33:3fe3) Quit (Quit: Leaving.)
[2:49] * slang1 (~slang@38.122.20.226) has joined #ceph
[2:52] * adjohn (~adjohn@108-225-130-229.lightspeed.sntcca.sbcglobal.net) Quit (Quit: adjohn)
[2:54] * maelfius (~mdrnstm@66.209.104.107) Quit (Quit: Leaving.)
[2:55] * slang (~slang@2607:f298:a:607:fc7e:bfaf:6f9b:d9be) Quit (Ping timeout: 480 seconds)
[3:03] * andreask (~andreas@chello062178013131.5.11.vie.surfer.at) Quit (Quit: Leaving.)
[3:04] * sjust (~sam@2607:f298:a:607:baac:6fff:fe83:5a02) Quit (Read error: Operation timed out)
[3:06] * slang1 (~slang@38.122.20.226) Quit (Quit: Leaving.)
[3:09] * gregaf (~Adium@2607:f298:a:607:c54c:c94:b0fa:326b) Quit (Quit: Leaving.)
[3:18] * Cube (~Adium@12.248.40.138) Quit (Ping timeout: 480 seconds)
[3:21] * sagelap (~sage@37.sub-70-197-139.myvzw.com) Quit (Ping timeout: 480 seconds)
[4:08] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) has joined #ceph
[4:08] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) has joined #ceph
[4:12] * maelfius (~mdrnstm@pool-71-160-33-115.lsanca.fios.verizon.net) has joined #ceph
[4:32] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) Quit (Quit: Leaving.)
[4:41] <elder> sagewk, I see you updated the testing branch.
[4:48] * elder (~elder@c-71-195-31-37.hsd1.mn.comcast.net) Quit (Remote host closed the connection)
[4:49] * elder (~elder@c-71-195-31-37.hsd1.mn.comcast.net) has joined #ceph
[4:53] * dmick (~dmick@2607:f298:a:607:a5ae:52fa:c5f9:dc59) Quit (Quit: Leaving.)
[5:22] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[5:24] * The_Bishop (~bishop@2001:470:50b6:0:dc25:80e5:4676:e618) Quit (Quit: Wer zum Teufel ist dieser Peer? Wenn ich den erwische dann werde ich ihm mal die Verbindung resetten!)
[5:26] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[5:33] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[5:37] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[5:47] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[5:49] <elder> sagewk, just for completeness, I did run the fixed code in 32-bit mode and the hang/crash problem did go away.
[5:50] <elder> But of course the 32-bit wrap problem on reads remains.
[5:52] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[5:59] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[6:08] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[6:15] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[6:18] * pentabular (~sean@adsl-70-231-141-128.dsl.snfc21.sbcglobal.net) has joined #ceph
[6:23] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[6:29] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[6:30] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[6:39] <pentabular> hey ninkotech! thought I was seeing double :)
[6:42] * pentabular (~sean@adsl-70-231-141-128.dsl.snfc21.sbcglobal.net) has left #ceph
[7:17] * deepsa_ (~deepsa@122.172.158.20) has joined #ceph
[7:19] * cephalobot (~ceph@ps94005.dreamhost.com) Quit (Read error: Connection reset by peer)
[7:19] * cephalobot` (~ceph@ps94005.dreamhost.com) has joined #ceph
[7:20] * deepsa (~deepsa@122.172.18.25) Quit (Ping timeout: 480 seconds)
[7:20] * deepsa_ is now known as deepsa
[8:01] * guerby_ (~guerby@nc10d-ipv6.tetaneutral.net) Quit (Read error: No route to host)
[8:02] * guerby (~guerby@nc10d-ipv6.tetaneutral.net) has joined #ceph
[8:02] * mdxi (~mdxi@74-95-29-182-Atlanta.hfc.comcastbusiness.net) Quit (Ping timeout: 480 seconds)
[8:06] * mdxi (~mdxi@74-95-29-182-Atlanta.hfc.comcastbusiness.net) has joined #ceph
[8:07] * MikeMcClurg (~mike@93-137-170-239.adsl.net.t-com.hr) has joined #ceph
[8:41] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) has joined #ceph
[8:48] * nhm (~nhm@173-11-35-162-Minnesota.hfc.comcastbusiness.net) Quit (Ping timeout: 480 seconds)
[8:52] * deepsa (~deepsa@122.172.158.20) Quit (Read error: Connection reset by peer)
[8:55] * deepsa (~deepsa@122.172.160.130) has joined #ceph
[9:08] * slang (~slang@209-234-161-202.static.twtelecom.net) has joined #ceph
[9:09] * slang1 (~slang@209-234-161-202.static.twtelecom.net) has joined #ceph
[9:09] * slang (~slang@209-234-161-202.static.twtelecom.net) Quit (Read error: Connection reset by peer)
[9:09] * slang1 (~slang@209-234-161-202.static.twtelecom.net) has left #ceph
[9:10] * slang (~slang@209-234-161-202.static.twtelecom.net) has joined #ceph
[9:18] * slang (~slang@209-234-161-202.static.twtelecom.net) Quit (Ping timeout: 480 seconds)
[9:19] * MikeMcClurg (~mike@93-137-170-239.adsl.net.t-com.hr) Quit (Quit: Leaving.)
[9:28] * loicd (~loic@magenta.dachary.org) Quit (Quit: Leaving.)
[9:35] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) Quit (Quit: Leaving.)
[9:59] * loicd (~loic@gw0.paris.fph.ch) has joined #ceph
[10:36] * cephalobot` (~ceph@ps94005.dreamhost.com) Quit (Read error: Connection reset by peer)
[10:36] * cephalobot (~ceph@ps94005.dreamhost.com) has joined #ceph
[11:03] * tjikkun (~tjikkun@2001:7b8:356:0:225:22ff:fed2:9f1f) Quit (Remote host closed the connection)
[11:05] * tryggvil (~tryggvil@163-60-19-178.xdsl.simafelagid.is) Quit (Quit: tryggvil)
[11:20] * tjikkun (~tjikkun@2001:7b8:356:0:225:22ff:fed2:9f1f) has joined #ceph
[11:40] * BManojlovic (~steki@212.200.241.157) has joined #ceph
[11:45] * EmilienM (~EmilienM@55.67.197.77.rev.sfr.net) has joined #ceph
[14:17] * AlfaAndros (~AlfaAndro@1RDAADSEF.tor-irc.dnsbl.oftc.net) has joined #ceph
[14:39] * SvenDowideit (~SvenDowid@203-206-171-38.perm.iinet.net.au) Quit (Ping timeout: 480 seconds)
[15:05] * tryggvil (~tryggvil@163-60-19-178.xdsl.simafelagid.is) has joined #ceph
[15:06] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) has joined #ceph
[15:18] * Cube (~Adium@184-231-97-22.pools.spcsdns.net) Quit (Quit: Leaving.)
[15:28] * deepsa (~deepsa@122.172.160.130) Quit (Quit: ["Textual IRC Client: www.textualapp.com"])
[15:31] * nhm (~nhm@173-11-35-162-Minnesota.hfc.comcastbusiness.net) has joined #ceph
[15:35] * loicd (~loic@gw0.paris.fph.ch) Quit (Ping timeout: 480 seconds)
[15:42] * deepsa (~deepsa@122.172.160.130) has joined #ceph
[15:56] * AlfaAndros (~AlfaAndro@1RDAADSEF.tor-irc.dnsbl.oftc.net) Quit (Quit: Sto andando via)
[16:56] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[16:59] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[17:07] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) Quit (Ping timeout: 480 seconds)
[17:08] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) has joined #ceph
[17:38] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) Quit (Quit: zzzzzzzzzzzzzzzzzzzz)
[18:03] * loicd (~loic@gw0.paris.fph.ch) has joined #ceph
[18:51] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) has joined #ceph
[18:54] * nhm (~nhm@173-11-35-162-Minnesota.hfc.comcastbusiness.net) Quit (Ping timeout: 480 seconds)
[19:05] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) Quit (Quit: zzzzzzzzzzzzzzzzzzzz)
[19:47] * lxo (~aoliva@lxo.user.oftc.net) Quit (Remote host closed the connection)
[19:47] * deepsa (~deepsa@122.172.160.130) Quit (Quit: ["Textual IRC Client: www.textualapp.com"])
[19:48] * deepsa (~deepsa@122.172.160.130) has joined #ceph
[20:01] * lxo (~aoliva@lxo.user.oftc.net) has joined #ceph
[20:05] * nhm (~nhm@67-220-20-222.usiwireless.com) has joined #ceph
[20:19] * slang (~slang@209-234-161-202.static.twtelecom.net) has joined #ceph
[20:20] * andreask (~andreas@chello062178013131.5.11.vie.surfer.at) has joined #ceph
[20:23] * slang (~slang@209-234-161-202.static.twtelecom.net) Quit ()
[20:30] * maelfius (~mdrnstm@pool-71-160-33-115.lsanca.fios.verizon.net) Quit (Quit: Leaving.)
[20:31] * maelfius (~mdrnstm@pool-71-160-33-115.lsanca.fios.verizon.net) has joined #ceph
[20:34] * lxo (~aoliva@lxo.user.oftc.net) Quit (Remote host closed the connection)
[20:44] * lxo (~aoliva@lxo.user.oftc.net) has joined #ceph
[20:49] * loicd (~loic@gw0.paris.fph.ch) Quit (Read error: Operation timed out)
[20:59] * maelfius (~mdrnstm@pool-71-160-33-115.lsanca.fios.verizon.net) Quit (Quit: Leaving.)
[21:11] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[21:20] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[21:26] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[21:34] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[21:37] * nhm (~nhm@67-220-20-222.usiwireless.com) Quit (Read error: Operation timed out)
[21:39] * loicd (~loic@magenta.dachary.org) has joined #ceph
[21:41] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[21:48] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[21:54] * ninkotech (~duplo@89.177.137.231) Quit (Remote host closed the connection)
[22:04] * ninkotech (~duplo@89.177.137.231) has joined #ceph
[22:11] * slang (~slang@209-234-161-202.static.twtelecom.net) has joined #ceph
[22:17] * scuttlemonkey (~scuttlemo@c-69-244-181-5.hsd1.mi.comcast.net) has joined #ceph
[22:21] * slang (~slang@209-234-161-202.static.twtelecom.net) Quit (Ping timeout: 480 seconds)
[22:49] * SvenDowideit (~SvenDowid@203-206-171-38.perm.iinet.net.au) has joined #ceph
[23:00] * nhm (~nhm@174-20-32-79.mpls.qwest.net) has joined #ceph
[23:23] * loicd (~loic@magenta.dachary.org) Quit (Quit: Leaving.)
[23:23] * loicd (~loic@magenta.dachary.org) has joined #ceph
[23:28] * lofejndif (~lsqavnbok@19NAACPV3.tor-irc.dnsbl.oftc.net) has joined #ceph
[23:29] * sagelap (~sage@76.89.177.113) has joined #ceph
[23:47] <nhm> boo, 1.35GB/s with crc32c disabled.
[23:53] * loicd (~loic@magenta.dachary.org) Quit (Quit: Leaving.)

These logs were automatically created by CephLogBot on irc.oftc.net using the Java IRC LogBot.