lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Wed, 26 Jun 2019 16:25:55 -0600
From:   Jens Axboe <>
To:     Douglas Anderson <>,
        Paolo Valente <>
Subject: Re: [PATCH] block, bfq: Init saved_wr_start_at_switch_to_srt in
 unlikely case

On 6/26/19 1:59 PM, Douglas Anderson wrote:
> Some debug code suggested by Paolo was tripping when I did reboot
> stress tests.  Specifically in bfq_bfqq_resume_state()
> "bic->saved_wr_start_at_switch_to_srt" was later than the current
> value of "jiffies".  A bit of debugging showed that
> "bic->saved_wr_start_at_switch_to_srt" was actually 0 and a bit more
> debugging showed that was because we had run through the "unlikely"
> case in the bfq_bfqq_save_state() function.
> Let's init "saved_wr_start_at_switch_to_srt" in the unlikely case to
> something sane.
> NOTE: this fixes no known real-world errors.

Applied, thanks.

Jens Axboe

Powered by blists - more mailing lists