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Date:   Thu, 8 Mar 2018 10:20:02 +0800
From:   rong zhao <>
To:     Jan Kara <>
Cc:     "Theodore Y. Ts'o" <>,,
Subject: Re: resize2fs hang at read function

Hi Lukas,

   Bug 1553004 filed for this, if anything needed, please let me know,
hope can learn from you how to find root cause.


2018-03-08 7:32 GMT+08:00 rong zhao <>:
> OK, will do it.
> Maybe enterprise world looks forward to more steady, so very conservative.
> Rong
> 2018-03-07 16:49 GMT+08:00 Jan Kara <>:
>> On Wed 07-03-18 00:08:46, Theodore Y. Ts'o wrote:
>>> On Wed, Mar 07, 2018 at 11:01:40AM +0800, rong zhao wrote:
>>> >
>>> > I downloaded the latest e2fsprogs source code from, it works.
>>> I'm not sure what the difference is, but I'm *shocked* that RHEL 7.4
>>> is still using e2fsprogs 1.42.x.  There are a very large number of
>>> resize2fs bugs, especially with very large file systems, with
>>> e2fsprogs 1.42.x.  Especially in the case of off-line resizes with a
>>> lage ext4 file system, with a resize2fs from e2fsprogs 1.42.x, data
>>> corruption is almost a certainty.
>> Yeah, welcome to the world of enterprise distributions :-|. Even in SLES 12
>> SP3 (our current latest "enterprise offering") we have e2fsprogs 1.42.11 as
>> well. And the reason is that at the time we were looking what e2fsprogs to
>> put there (which was about two years back), 1.43 was still "WIP" and so I
>> had some doubts whether we can ship it in a distro supported for another 10
>> years. So we have 1.42.11 and only backport fixes based on customers' bug
>> reports.
>> Luckily we are somewhat flexible at least on service pack releases so now
>> that e2fsprogs is having more regular releases (big thanks for that!), I
>> actually take your comment as a good reminder to talk to our PMs about
>> pushing 1.43.x to SLE12 SP4 :).
>>                                                                 Honza
>> --
>> Jan Kara <>
>> SUSE Labs, CR

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