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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Jiri Slaby <jirislaby@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	minchan@kernel.org, ngupta@vflare.org, Jan Kara <jack@suse.com>,
	Ted Ts'o <tytso@mit.edu>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	Ext4 Developers List <linux-ext4@vger.kernel.org>,
	avromanov@sberdevices.ru, ddrokosov@sberdevices.ru,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: Re: ext2/zram issue [was: Linux 5.19]
Date: Tue, 9 Aug 2022 18:11:57 +0900	[thread overview]
Message-ID: <YvIk3SdC7wP3uItR@google.com> (raw)
In-Reply-To: <YvIeLHuEb9XDSp6N@google.com>

On (22/08/09 17:43), Sergey Senozhatsky wrote:
> On (22/08/09 10:12), Jiri Slaby wrote:
> > > So currently, I blame:
> > > commit e7be8d1dd983156bbdd22c0319b71119a8fbb697
> > > Author: Alexey Romanov <avromanov@sberdevices.ru>
> > > Date:   Thu May 12 20:23:07 2022 -0700
> > > 
> > >      zram: remove double compression logic
> > > 
> > > 
> > > /me needs to confirm.
> > 
> > With that commit reverted, I see no more I/O errors, only oom-killer
> > messages (which is OK IMO, provided I write 1G of urandom on a machine w/
> > 800M of RAM):
> 
> Hmm... So handle allocation always succeeds in the slow path? (when we
> try to allocate it second time)

Yeah I can see how handle re-allocation with direct reclaim can make it more
successful, but in exchange it oom-kills some user-space process, I suppose.
Is oom-kill really a good alternative though?

  reply	other threads:[~2022-08-09  9:12 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-31 21:43 Linux 5.19 Linus Torvalds
2022-08-01 12:47 ` Build regressions/improvements in v5.19 Geert Uytterhoeven
2022-08-02  9:14   ` Geert Uytterhoeven
2022-08-01 16:52 ` Linux 5.19 Tony Luck
2022-08-01 16:59   ` Linus Torvalds
2022-08-05 17:00 ` Please consider Linux 5.20 because it means "I love Linux" in Chinese (Re: Linux 5.19) Zhang Boyang
2022-08-07 17:21   ` David Laight
2022-08-09  6:03 ` ext2/zram issue [was: Linux 5.19] Jiri Slaby
2022-08-09  7:59   ` Jiri Slaby
2022-08-09  8:12     ` Jiri Slaby
2022-08-09  8:43       ` Sergey Senozhatsky
2022-08-09  9:11         ` Sergey Senozhatsky [this message]
2022-08-09  9:20           ` Sergey Senozhatsky
2022-08-09 10:20             ` Dmitry Rokosov
2022-08-09 11:53               ` Sergey Senozhatsky
2022-08-09 13:15                 ` Aleksey Romanov
2022-08-09 13:29                   ` Sergey Senozhatsky
2022-08-10  7:06                 ` [PATCH] Revert "zram: remove double compression logic" Jiri Slaby
2022-08-10  7:14                   ` Sergey Senozhatsky
2022-08-09 12:35             ` ext2/zram issue [was: Linux 5.19] Jiri Slaby
2022-08-09 12:45               ` Jiri Slaby
2022-08-09 12:57                 ` Sergey Senozhatsky
2022-08-09 13:07                   ` Sergey Senozhatsky
2022-08-09  9:12   ` Lukas Czerner
2022-08-09  9:15     ` Sergey Senozhatsky
2022-08-09  9:53       ` Lukas Czerner
     [not found]   ` <20220830214626.26544-1-charlie39@cock.li>
2022-08-31  7:55     ` Jiri Slaby
2022-08-11 14:02 ` [RESEND] Please consider name next Linux release "I love Linux" (Re: Linux 5.19) Zhang Boyang
2022-08-12  2:39   ` Baoquan He
2022-08-12  3:28     ` Huacai Chen
2022-08-12  6:31       ` Gao Xiang
2022-08-12  8:22         ` YanTeng Si
2022-08-13 17:17     ` Zhang Boyang
2022-08-14 15:22     ` WANG Xuerui

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