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Date: Thu, 5 Sep 2019 09:36:31 +0800 From: "Hongzhi, Song" <hongzhi.song@...driver.com> To: Josef Bacik <josef@...icpanda.com> CC: <linux-btrfs@...r.kernel.org>, <linux-kernel@...r.kernel.org> Subject: Re: Bug?: unlink cause btrfs error but other fs don't On 9/4/19 6:48 PM, Josef Bacik wrote: > On Wed, Sep 04, 2019 at 04:02:24PM +0800, Hongzhi, Song wrote: >> Hi , >> >> >> *Kernel:* >> >> After v5.2-rc1, qemux86-64 >> >> make -j40 ARCH=x86_64 CROSS_COMPILE=x86-64-gcc >> use qemu to bootup kernel >> >> >> *Reproduce:* >> >> There is a test case failed on btrfs but success on other fs(ext4,ext3), >> see attachment. >> >> >> Download attachments: >> >> gcc test.c -o myout -Wall -lpthread >> >> copy myout and run.sh to your qemu same directory. >> >> on qemu: >> >> ./run.sh >> >> >> I found the block device size with btrfs set 512M will cause the error. >> 256M and 1G all success. >> >> >> *Error info:* >> >> "BTRFS warning (device loop0): could not allocate space for a delete; >> will truncate on mount" >> >> >> *Related patch:* >> >> I use git bisect to find the following patch introduces the issue. >> >> commit c8eaeac7b734347c3afba7008b7af62f37b9c140 >> Author: Josef Bacik <josef@...icpanda.com> >> Date: Wed Apr 10 15:56:10 2019 -0400 >> >> btrfs: reserve delalloc metadata differently >> ... >> >> > I meant to reply to this but couldn't find the original thread. The patches I > wrote for this merge window were to address this issue. Thanks, > > Josef Ok, thank your, I will try to search them. --Hongzhi >
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