Re: deleting a btrfs subvolume shut up a server

2015-06-10 Thread Liu Bo
On Thu, May 14, 2015 at 02:16:58PM +0200, Toralf Förster wrote:
> I created at a 3 TB btrfs formatted disk a btrfs subvolume, unpacked a 
> minimal Gentoo Linux in it, created in addition few files within it under 
> ./tmp and bind mount from the host few files onto those files. If I now 
> delete in another terminal the subvolume - then the server dies immediately
> 
> It is a headless server, I had to request a manually reset to get it back.
> Nothing in the syslog (syslog-ng 3.6.2) - the server was just shot in he head.
> 
> This happened 2 times in a row. Host is a stable hardened Gentoo with 4.0.2 
> kernel.

Hmm, is it possible to get some information from netconsole?

Thanks,

-liubo
> 
> :-/
> 
> -- 
> Toralf
> pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E
> --
> "; the past is all dirty and cruel in the modern popular imagination, with 
> the exception of the Romans, who are just cruel"
> Ian Mortimer, 2008, "The Time Traveller's Guide to Medieval England"
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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Re: deleting a btrfs subvolume shut up a server

2015-06-10 Thread Liu Bo
On Thu, May 14, 2015 at 02:16:58PM +0200, Toralf Förster wrote:
 I created at a 3 TB btrfs formatted disk a btrfs subvolume, unpacked a 
 minimal Gentoo Linux in it, created in addition few files within it under 
 ./tmp and bind mount from the host few files onto those files. If I now 
 delete in another terminal the subvolume - then the server dies immediately
 
 It is a headless server, I had to request a manually reset to get it back.
 Nothing in the syslog (syslog-ng 3.6.2) - the server was just shot in he head.
 
 This happened 2 times in a row. Host is a stable hardened Gentoo with 4.0.2 
 kernel.

Hmm, is it possible to get some information from netconsole?

Thanks,

-liubo
 
 :-/
 
 -- 
 Toralf
 pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E
 --
 ; the past is all dirty and cruel in the modern popular imagination, with 
 the exception of the Romans, who are just cruel
 Ian Mortimer, 2008, The Time Traveller's Guide to Medieval England
 --
 To unsubscribe from this list: send the line unsubscribe linux-btrfs in
 the body of a message to majord...@vger.kernel.org
 More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
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the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


deleting a btrfs subvolume shut up a server

2015-05-14 Thread Toralf Förster
I created at a 3 TB btrfs formatted disk a btrfs subvolume, unpacked a minimal 
Gentoo Linux in it, created in addition few files within it under ./tmp and 
bind mount from the host few files onto those files. If I now delete in another 
terminal the subvolume - then the server dies immediately

It is a headless server, I had to request a manually reset to get it back.
Nothing in the syslog (syslog-ng 3.6.2) - the server was just shot in he head.

This happened 2 times in a row. Host is a stable hardened Gentoo with 4.0.2 
kernel.

:-/

-- 
Toralf
pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E
--
"; the past is all dirty and cruel in the modern popular imagination, with the 
exception of the Romans, who are just cruel"
Ian Mortimer, 2008, "The Time Traveller's Guide to Medieval England"
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


deleting a btrfs subvolume shut up a server

2015-05-14 Thread Toralf Förster
I created at a 3 TB btrfs formatted disk a btrfs subvolume, unpacked a minimal 
Gentoo Linux in it, created in addition few files within it under ./tmp and 
bind mount from the host few files onto those files. If I now delete in another 
terminal the subvolume - then the server dies immediately

It is a headless server, I had to request a manually reset to get it back.
Nothing in the syslog (syslog-ng 3.6.2) - the server was just shot in he head.

This happened 2 times in a row. Host is a stable hardened Gentoo with 4.0.2 
kernel.

:-/

-- 
Toralf
pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E
--
; the past is all dirty and cruel in the modern popular imagination, with the 
exception of the Romans, who are just cruel
Ian Mortimer, 2008, The Time Traveller's Guide to Medieval England
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/