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From: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: Mathieu Othacehe <othacehe@gnu.org>,
	39341-done@debbugs.gnu.org,
	Maxim Cournoyer <maxim.cournoyer@gmail.com>
Subject: bug#39341: Installer using 100% of a CPU core
Date: Wed, 28 Apr 2021 09:06:19 +0200	[thread overview]
Message-ID: <20210428070619.myzkbfywyjj7i2ld@pelzflorian.localdomain> (raw)
In-Reply-To: <20210428070210.g3lntjoek5y6hyi7@pelzflorian.localdomain>

On Wed, Apr 28, 2021 at 09:02:10AM +0200, pelzflorian (Florian Pelz) wrote:
> On Tue, Apr 27, 2021 at 11:26:41PM +0200, Ludovic Courtès wrote:
> > 165   openat(AT_FDCWD, "/gnu/store/qz3zdrz12rxawlkvah9qjhjyf6fh1v98-xkeyboard-config-2.31/share/X11/xkb/symbols/inet", O_RDONLY) = 22
> > 165   fstat(22, {st_mode=S_IFREG|0444, st_size=64040, ...}) = 0
> > 165   mmap(NULL, 64040, PROT_READ, MAP_SHARED, 22, 0) = 0x7f50d23b5000
> > 165   brk(0x12bb000)                    = 0x12bb000
> > 165   munmap(0x7f50d23b5000, 64040)     = 0
> > 165   close(22)                         = 0
> > 165   epoll_ctl(3, EPOLL_CTL_DEL, 17, NULL) = 0
> > 165   close(17)                         = 0
> > 165   getpid()                          = 165
> > 165   unlink("/tmp/kmscon-165-keymap-update") = 0
> > 165   mknod("/tmp/kmscon-165-keymap-update", S_IFIFO|0700) = 0
> > 165   openat(AT_FDCWD, "/tmp/kmscon-165-keymap-update", O_RDONLY|O_NONBLOCK) = 17
> > 165   epoll_ctl(3, EPOLL_CTL_ADD, 17, {EPOLLIN, {u32=19410896, u64=19410896}}) = 0
> > --8<---------------cut here---------------end--------------->8---
> > 
> > The last lines show that we delete the FIFO from the poll set, close the
> > FIFO, recreate it, and re-add it to the poll set.
> 
> I got:
> 
> 231   openat(AT_FDCWD, "/gnu/store/qz3zdrz12rxawlkvah9qjhjyf6fh1v98-xkeyboard-config-2.31/share/X11/xkb/symbols/inet", O_RDONLY) = 31
> 231   fstat(31, {st_mode=S_IFREG|0444, st_size=64040, ...}) = 0
> 231   mmap(NULL, 64040, PROT_READ, MAP_SHARED, 31, 0) = 0x7f1b1f5c7000
> 231   munmap(0x7f1b1f5c7000, 64040)     = 0
> 231   close(31)                         = 0
> 231   epoll_ctl(3, EPOLL_CTL_DEL, 26, NULL) = 0
> 231   close(26)                         = 0
> 231   getpid()                          = 231
> 231   unlink("/tmp/kmscon-231-keymap-update") = 0
> 231   mknod("/tmp/kmscon-231-keymap-update", S_IFIFO|0700) = 0
> 231   openat(AT_FDCWD, "/tmp/kmscon-231-keymap-update", O_RDONLY|O_NONBLOCK) = 26
> 231   epoll_ctl(3, EPOLL_CTL_ADD, 26, {EPOLLIN, {u32=9609568, u64=9609568}}) = 0
> 231   epoll_wait(3, [{EPOLLIN, {u32=8123856, u64=8123856}}], 32, -1) = 1
> 231   read(14, "\2\0\0\0 \0\0\0000\373{\0\0\0\0\0\326\0\0\0^\335\t\0\347,\0\0]\0\0\0", 1024) = 32
> 231   ioctl(14, DRM_IOCTL_MODE_PAGE_FLIP, 0x7fff282d6b50) = 0
> 
> Slightly different.  This is the next occurrence after the pci05\0fr.

The brk does happen, just later, if it is important.

Regards,
Florian




  reply	other threads:[~2021-04-28  7:07 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-29  5:19 bug#39341: Installer using 100% of a CPU core Maxim Cournoyer
2021-04-25 21:41 ` Ludovic Courtès
2021-04-26 14:32   ` pelzflorian (Florian Pelz)
2021-04-26 16:07     ` Ludovic Courtès
2021-04-26 16:14       ` pelzflorian (Florian Pelz)
2021-04-27 10:38         ` Ludovic Courtès
2021-04-27 12:32           ` pelzflorian (Florian Pelz)
2021-04-27 17:43             ` Bengt Richter
2021-04-27 19:58               ` pelzflorian (Florian Pelz)
2021-04-27 21:26             ` Ludovic Courtès
2021-04-28  7:02               ` pelzflorian (Florian Pelz)
2021-04-28  7:06                 ` pelzflorian (Florian Pelz) [this message]
2021-04-28 13:43                 ` Ludovic Courtès
2021-04-28 15:20                   ` pelzflorian (Florian Pelz)
2021-04-29  9:33                   ` Mathieu Othacehe
2021-04-29  9:59                     ` Ludovic Courtès
2021-04-29 10:13                       ` Mathieu Othacehe
2021-04-29 10:47                     ` pelzflorian (Florian Pelz)
2021-04-28 15:22                 ` Ludovic Courtès

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