linux-kernel - Re: [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds.

lists.openwall.net		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 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+55aFzouo1TKk9SOBL5Hht1p8R=MTn18wgW=0TmMDgBRUS23A@mail.gmail.com>
Date:   Mon, 27 Nov 2017 13:34:55 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Fengguang Wu <fengguang.wu@...el.com>
Cc:     Network Development <netdev@...r.kernel.org>,
        Phil Sutter <phil@....cc>, Thomas Graf <tgraf@...g.ch>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Westphal <fw@...len.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        LKP <lkp@...org>
Subject: Re: [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds.

On Tue, Nov 21, 2017 at 3:52 AM, Fengguang Wu <fengguang.wu@...el.com> wrote:
> Here is a different call trace related to rhashtable.
>
> It occurs in 17 out of 90 boots.
>
> [  342.666234] Writes:  Total: 4  Max/Min: 0/0   Fail: 0
> [  381.918047] INFO: task swapper/0:1 blocked for more than 120 seconds.

This looks very similar to the other lockup case: lock torture testing
and rhashtable testing at the same time, causing long long delays..

          Linus