linux-ext4 - [Bug 186551] mkfs.ext4 tries to discard sector beyond the end of the device

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Date:   Tue, 01 Nov 2016 19:54:09 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 186551] mkfs.ext4 tries to discard sector beyond the end of the
 device

https://bugzilla.kernel.org/show_bug.cgi?id=186551

--- Comment #10 from Tamas Vincze <tom@...cze.org> ---
# blkdiscard -v --offset 700G --step 1073741824 /dev/nvme0n1p1 
blkdiscard: /dev/nvme0n1p1: BLKDISCARD ioctl failed: Input/output error

[606050.283746] blk_update_request: I/O error, dev nvme0n1, sector 1547700224

# blkdiscard -v --length=700G /dev/nvme0n1p1
/dev/nvme0n1p1: Discarded 751619276800 bytes from the offset 0

Looks like it's having problems above 700G.

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