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   October 10, 2019
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[00:17:18] <copec> Exaflopic is a great word
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[00:36:33] <neirac> jperkin hi, are you working on integrating patches to build hashicorp's nomad in pkgsrc?
[00:40:41] <jlevon> ok, I did not know we had *assembly* for linked list insertion/removal. wtf.
[00:41:17] <jbk> ?!?
[00:41:19] <jperkin> neirac: nope?
[00:41:24] <jlevon> _insque
[00:42:19] <jbk> solaris 2.3
[00:43:09] <jlevon> I'd love to know how that ended up as asm
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[00:45:55] <jbk> hrm.. the assembly doesn't appear to match the C implementations either
[00:46:24] <jbk> or at least, the kernel versions appear to have different semantics than the libc version
[00:47:31] <jbk> though there is also a libc sparc version
[00:47:38] <jbk> that appears to not do what the C version does..
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[00:48:26] <jbk> at least that what it looks like
[00:48:47] <jbk> (I'm not immediately seeing how the assembly handles predp==NULL the same as C)
[00:49:10] <jlevon> shrug emoji
[00:49:38] <jbk> oh wait
[00:49:42] <jbk> libbc
[00:49:44] <jbk> nevermind
[00:49:45] <jbk> :)
[00:49:48] <LeftWing> jlevon: How did you find _insque!
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[00:50:14] <jlevon> I got annoyed and started hacking at __i386
[00:50:29] <jbk> so it's only the kernel/userland versions that differ
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[01:17:35] <neirac> jperkin oh, I think it was changes needed for nomad, like this one https://github.com/jperkin/gopsutil/commit/85cb8adacd364e902b5c1e2b2b69b2d8436fa3e8
[01:18:02] <neirac> Smithx10 do you know in which point things are with nomad ?
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[01:23:18] <Smithx10> Haven’t touched Illumos native
[01:23:34] <Smithx10> Been focused on something for work
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[03:43:45] <neirac> Smithx10 ok, me also just resuming work on the task driver
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[03:45:34] <despair86> do _any_ of the memory allocation routines attempt to reclaim freed memory
[03:46:04] <despair86> most use mmap(2) under the hood and eventually do a munmap(2) periodically
[03:46:17] <despair86> some operating systems*
[03:51:25] <jbk> libmapmalloc appears that it will
[03:56:03] <despair86> > There is no reclaiming of memory.
[03:56:29] <jbk> otherwise i don't think any of the others do
[03:56:56] <despair86> firefox and other modern apps with a reusable heap arena would be a lot less painful to use after long uptime if the OS periodically unmapped freed memory
[03:57:05] <despair86> all the others do it seems
[03:58:51] <jbk> both the default libc allocator and libumem use sbrk
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[06:27:18] <rmustacc> It's on a long term todo list, but probably not going to happen any time soon.
[06:29:33] <jbk> hrm.. if i elfwrap a text file, there's no guarantee the resulting object is NUL terminated is there? (and would require something a bit ugly like explictly including an extra newline at the end that could be changed to NUL wouldn't it?
[06:32:40] <rmustacc> I don't believe there is any such guarantee. You get an address and a size.
[06:33:16] <rmustacc> (Technically a starting and ending address)
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[07:37:03] <LeftWing> jbk: You should look at what I did with the build stamp object
[07:37:25] <LeftWing> I believe I stuck a NUL on the end basically explicitly
[07:39:09] <LeftWing> Probably worth adding some more options to elfwrap to be honest; e.g., one that lets you set the symbol name, one that appends a NUL automatically, etc
[07:43:03] <rmustacc> Those sound fun. I'd enjoy doing that.
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[08:03:43] <gitomat> [illumos-gate] 11779 loader.efi: framebuffer cstyle cleanup -- Toomas Soome <tsoome at me dot com>
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[09:10:10] <jperkin> neirac: ah, I was doing that for telegraf, not nomad
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[14:54:40] <Smithx10> neirac: for smartos I had started working on vmadm-go
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[15:40:16] <gitomat> [illumos-gate] 11751 mdb refuses to use version 4 mdb modules after 10859 -- Toomas Soome <tsoome at me dot com>
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[19:48:17] <jlevon> List all audit records generated by the system call systemcall, for
[19:48:17] <jlevon> example, audit records generated by a system call.
[19:48:19] <jlevon> great example guys
[19:48:56] <Smithx10> jlevon: huh?
[19:49:18] <jlevon> from the man page
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[20:23:41] <Smithx10> ahhh lol
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[21:09:49] <_mjg> anyone with decent smp sparc-fu? I'm curious what penalties are there for false sharing
[21:10:09] <jbk> 5 yards? :P
[21:10:11] <_mjg> or what degradation can be expected with n threads doing atomic ops on the same line
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[21:10:24] <_mjg> (i also know there is more than one sparc :>)
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[21:10:41] <_mjg> trying to find osme data points, but i can't find anything of the sort
[21:11:04] <_mjg> jbk: well if that's the case, the kernel team is still doing laps :->
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[21:39:48] <jlevon> tsoome: if it wasn't a total PITA I'd suggest changing xc_func_t instead since we never use the return arg anywhere :)
[21:41:12] <tsoome> I’ll sech it over - thats why reviews are good:)
[21:41:19] <tsoome> check*
[21:41:58] <jlevon> what you have is fine.
[21:43:26] <tsoome> there are alternate solutions, some are better, some are even more better:)
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[22:18:54] <Reinhilde> someone probably uses, or formerly used, charybdis on illumos, and I assume they'd be able to understand what's going on here.
[22:18:56] <Reinhilde> https://github.com/charybdis-ircd/charybdis/issues/291
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[22:23:55] <tsoome> now only userland bits are remaining. (for gcc8).
[22:28:20] <jlevon> tsoome: cool
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   October 10, 2019
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