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Groups > comp.os.linux.misc > #88620

Re: Anyone else seen this.

From The Natural Philosopher <tnp@invalid.invalid>
Newsgroups comp.os.linux.misc, uk.d-i-y
Subject Re: Anyone else seen this.
Date 2026-07-03 22:20 +0100
Organization A little, after lunch
Message-ID <112992u$3mlcf$4@dont-email.me> (permalink)
References <1128k1p$3fgrb$1@dont-email.me> <vIu*TMFKA@news.chiark.greenend.org.uk>

Cross-posted to 2 groups.

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On 03/07/2026 17:43, Theo wrote:
> In uk.d-i-y The Natural Philosopher <tnp@invalid.invalid> wrote:
>> Recently my router (Draytek 2726) has been spontaneously rebooting.
>>
>> Examination of the logs show a kernel panic caused by 'attempt to
>> execute an illegal instruction'.
>>
>> My assumption, possibly erroneous, is that the actual firmware code is
>> corrupted
>> The router is rated only to +45°C but that is the recommended limit for
>> flash memory, and the room temperature has been up towards 40°C. which
>> doesn't leave a great deal of margin for router internal heat production.
>> My query is whether anyone else has seen issues with flash memory in the
>> recent hear wave.
>>
>> Surely phones get hotter than this?
>>
>> Genuinely interested in other's experiences.
> 
> You can get bit flips from cosmic rays.  That's a reason servers have ECC
> memory:
> 
> https://en.wikipedia.org/wiki/Soft_error
> 
> Not sure to what extent flash is affected, but many routers nowadays copy
> their OS into RAM before execution: 'execute in place' is still possible,
> but sometimes they store a compressed image in flash to reduce flash cost
> and decompress into RAM on boot.

Well its rebooted and then done it again a few hours later. That doesn't 
rule out dodgy RAM but it inclines towards Flash,,,
> 
> It could also be a RAM chip on the way out.
> 
Very interesting possibility..

> Theo

-- 
“it should be clear by now to everyone that activist environmentalism 
(or environmental activism) is becoming a general ideology about humans, 
about their freedom, about the relationship between the individual and 
the state, and about the manipulation of people under the guise of a 
'noble' idea. It is not an honest pursuit of 'sustainable development,' 
a matter of elementary environmental protection, or a search for 
rational mechanisms designed to achieve a healthy environment. Yet 
things do occur that make you shake your head and remind yourself that 
you live neither in Joseph Stalin’s Communist era, nor in the Orwellian 
utopia of 1984.”

Vaclav Klaus

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Thread

Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 16:21 +0100
  Re: Anyone else seen this. Andy Burns <usenet@andyburns.uk> - 2026-07-03 16:37 +0100
    Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:10 +0100
  Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 16:45 +0100
    Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 18:52 +0100
      Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:17 +0100
    Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:16 +0100
      Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 22:29 +0100
        Re: Anyone else seen this. [Draytek rebooting] Theo <theom+news@chiark.greenend.org.uk> - 2026-07-04 00:33 +0100
          Re: Anyone else seen this. [Draytek rebooting] jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 07:45 +0100
            Re: Anyone else seen this. [Draytek rebooting] The Natural Philosopher <tnp@invalid.invalid> - 2026-07-04 12:39 +0100
  Re: Anyone else seen this. Theo <theom+news@chiark.greenend.org.uk> - 2026-07-03 17:43 +0100
    Re: Anyone else seen this. Richard Kettlewell <invalid@invalid.invalid> - 2026-07-03 22:09 +0100
      Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:46 +0100
      Re: Anyone else seen this. Pancho <Pancho.Jones@protonmail.com> - 2026-07-03 23:14 +0100
    Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:20 +0100
  Re: Anyone else seen this. Adrian <diy@ku.gro.lioff> - 2026-07-03 17:51 +0100
    Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:26 +0100
  Re: Anyone else seen this. Pancho <Pancho.Jones@protonmail.com> - 2026-07-03 19:28 +0100
    Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-03 22:28 +0100
  Re: Anyone else seen this. "Jeff Gaines" <jgnewsid@outlook.com> - 2026-07-03 19:38 +0000
  Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-03 21:15 +0100
    Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-03 22:32 +0100
      Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-04 00:30 +0100
        Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 08:55 +0100
          Re: Anyone else seen this. John Rumm <see.my.signature@nowhere.null> - 2026-07-04 12:36 +0100
  Re: Anyone else seen this. Rich <rich@example.invalid> - 2026-07-04 05:30 +0000
  Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-04 11:23 +0100
    Re: Anyone else seen this. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-07-04 17:06 +0000
      Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-04 19:08 +0100
      Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-05 02:36 -0400
    Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-04 22:05 +0100
      Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-04 23:19 +0100
        Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:28 +0100
          Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 10:38 +0100
            Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:53 +0100
              Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 19:24 +0100
                Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 23:55 +0100
          Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 12:05 +0100
            Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 13:57 +0100
        Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-06 13:01 +0100
          Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 13:15 +0100
            Re: Anyone else seen this. Rich <rich@example.invalid> - 2026-07-06 14:15 +0000
              Re: Anyone else seen this. "Carlos E. R." <robin_listas@es.invalid> - 2026-07-06 20:00 +0200
                Re: Anyone else seen this. Rich <rich@example.invalid> - 2026-07-06 19:55 +0000
              Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-07 09:12 +0100
      Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 09:18 +0100
        Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 10:40 +0100
          Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:54 +0100
            Re: Anyone else seen this. tony sayer <tony@bancom.co.uk> - 2026-07-06 13:06 +0100
              Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 13:18 +0100
          Re: Anyone else seen this. alan_m <junk@admac.myzen.co.uk> - 2026-07-05 12:32 +0100
            Re: Anyone else seen this. jkn <jkn+nin@nicorp.co.uk> - 2026-07-05 17:24 +0100
        Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-06 00:49 -0400
          Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-06 12:24 +0100
  Re: Anyone else seen this. "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-07-04 21:52 +0800
    Re: Anyone else seen this. c186282 <c186282@nnada.net> - 2026-07-04 23:34 -0400
      Re: Anyone else seen this. The Natural Philosopher <tnp@invalid.invalid> - 2026-07-05 10:50 +0100

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