From: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
To: <linux-btrfs@vger.kernel.org>
Subject: warning at at fs/btrfs/delayed-inode.c:655 while doing stress test
Date: Thu, 28 Aug 2014 17:43:23 +0900 [thread overview]
Message-ID: <53FEEBAB.90305@jp.fujitsu.com> (raw)
Hi,
When I ran a stress test for Btrfs (v3.17-rc2), then I got the following
warning messages repeatedly. I think the messages were outputted because
btrfs_block_rsv_migrate() returned as ENOSPC.
I'm not sure this is related to a bug or not...
How to reproduce:
1. Create btrfs on a 5GB partition and mount it.
# mkfs -t btrfs -f /dev/sdb5
# mount /dev/sdb5 /mnt/sdb5
2. Run a stress tests like as followings. I used LTP as the stress test.
# /opt/ltp/testscripts/ltpstress.sh -n -t 168 -d /mnt/sdb5/hogehoge &
# /opt/ltp/testcases/bin/fsstress -d /mnt/sdb5/test -n 10000 -p 100 -l 0 &
I detected the messages within three hours.
The code which output the message:
static int btrfs_delayed_inode_reserve_metadata(
struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct inode *inode,
struct btrfs_delayed_node *node)
...
ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes);
if (!WARN_ON(ret)) <= HERE!!
goto out;
/*
* Ok this is a problem, let's just steal from the global rsv
* since this really shouldn't happen that often.
*/
ret = btrfs_block_rsv_migrate(&root->fs_info->global_block_rsv,
dst_rsv, num_bytes);
The message:
[65058.999117] ------------[ cut here ]------------
[65058.999170] WARNING: CPU: 0 PID: 3284 at fs/btrfs/delayed-inode.c:655 btrfs_delayed_update_inode+0x2a0/0x450 [btrfs]()
[65058.999172] Modules linked in: ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter ip_tables sg coretemp kvm_intel btrfs iTCO_wdt xor kvm nfsd iTCO_vendor_support raid6_pq auth_rpcgss nfs_acl lockd crc32c_intel uinput osst ipmi_si lpc_ich st i2c_i801 i7core_edac mfd_core ipmi_msghandler edac_core sunrpc shpchp pcspkr xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt drm_kms_helper ttm usb_storage drm ahci libahci libata
[65058.999221] igb ptp pps_core megaraid_sas dca i2c_algo_bit
[65058.999230] CPU: 0 PID: 3284 Comm: kworker/u9:1 Tainted: G W 3.17.0-rc2 #1
[65058.999232] Hardware name: FUJITSU-SV PRIMERGY /D2619, BIOS 6.00 Rev. 1.03.2619.N1 04/06/2010
[65058.999249] Workqueue: btrfs-endio-write normal_work_helper [btrfs]
[65058.999251] 0000000000000000 0000000057b6814e ffff88010096fc28 ffffffff816363b7
[65058.999254] 0000000000000000 ffff88010096fc60 ffffffff810741ad ffff880172d1d0a0
[65058.999257] 0000000000040000 ffff880159c20958 ffff880239435000 ffff8802192411c0
[65058.999260] Call Trace:
[65058.999271] [<ffffffff816363b7>] dump_stack+0x45/0x56
[65058.999277] [<ffffffff810741ad>] warn_slowpath_common+0x7d/0xa0
[65058.999279] [<ffffffff810742da>] warn_slowpath_null+0x1a/0x20
[65058.999296] [<ffffffffa05a58d0>] btrfs_delayed_update_inode+0x2a0/0x450 [btrfs]
[65058.999311] [<ffffffffa055531c>] btrfs_update_inode+0x5c/0xd0 [btrfs]
[65058.999326] [<ffffffffa055820c>] btrfs_update_inode_fallback+0x1c/0x50 [btrfs]
[65058.999341] [<ffffffffa055876b>] btrfs_finish_ordered_io+0x52b/0x610 [btrfs]
[65058.999347] [<ffffffff810ae300>] ? pick_next_task_fair+0x590/0x870
[65058.999362] [<ffffffffa0558b65>] finish_ordered_fn+0x15/0x20 [btrfs]
[65058.999378] [<ffffffffa057f256>] normal_work_helper+0xc6/0x280 [btrfs]
[65058.999382] [<ffffffff8108c8cf>] process_one_work+0x17f/0x420
[65058.999384] [<ffffffff8108cfcb>] worker_thread+0x11b/0x510
[65058.999387] [<ffffffff8108ceb0>] ? rescuer_thread+0x340/0x340
[65058.999390] [<ffffffff81092671>] kthread+0xe1/0x100
[65058.999393] [<ffffffff81092590>] ? kthread_create_on_node+0x1a0/0x1a0
[65058.999397] [<ffffffff8163e37c>] ret_from_fork+0x7c/0xb0
[65058.999400] [<ffffffff81092590>] ? kthread_create_on_node+0x1a0/0x1a0
[65058.999402] ---[ end trace fc1325844b8e13c1 ]---
[65332.479837] ------------[ cut here ]------------
[65332.479887] WARNING: CPU: 0 PID: 3285 at fs/btrfs/delayed-inode.c:655 btrfs_delayed_update_inode+0x2a0/0x450 [btrfs]()
[65332.479889] Modules linked in: ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter ip_tables sg coretemp kvm_intel btrfs iTCO_wdt xor kvm nfsd iTCO_vendor_support raid6_pq auth_rpcgss nfs_acl lockd crc32c_intel uinput osst ipmi_si lpc_ich st i2c_i801 i7core_edac mfd_core ipmi_msghandler edac_core sunrpc shpchp pcspkr xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt drm_kms_helper ttm usb_storage drm ahci libahci libata
[65332.479939] igb ptp pps_core megaraid_sas dca i2c_algo_bit
[65332.479946] CPU: 0 PID: 3285 Comm: kworker/u9:2 Tainted: G W 3.17.0-rc2 #1
[65332.479948] Hardware name: FUJITSU-SV PRIMERGY /D2619, BIOS 6.00 Rev. 1.03.2619.N1 04/06/2010
[65332.479966] Workqueue: btrfs-endio-write normal_work_helper [btrfs]
[65332.479968] 0000000000000000 00000000015b5564 ffff88004e863c28 ffffffff816363b7
[65332.479971] 0000000000000000 ffff88004e863c60 ffffffff810741ad ffff880104441c80
[65332.479974] 0000000000040000 ffff8801635dc578 ffff880239435000 ffff8802192411c0
[65332.479977] Call Trace:
[65332.479986] [<ffffffff816363b7>] dump_stack+0x45/0x56
[65332.479991] [<ffffffff810741ad>] warn_slowpath_common+0x7d/0xa0
[65332.479994] [<ffffffff810742da>] warn_slowpath_null+0x1a/0x20
[65332.480011] [<ffffffffa05a58d0>] btrfs_delayed_update_inode+0x2a0/0x450 [btrfs]
[65332.480026] [<ffffffffa055531c>] btrfs_update_inode+0x5c/0xd0 [btrfs]
[65332.480041] [<ffffffffa055820c>] btrfs_update_inode_fallback+0x1c/0x50 [btrfs]
[65332.480056] [<ffffffffa055876b>] btrfs_finish_ordered_io+0x52b/0x610 [btrfs]
[65332.480061] [<ffffffff810ae300>] ? pick_next_task_fair+0x590/0x870
[65332.480076] [<ffffffffa0558b65>] finish_ordered_fn+0x15/0x20 [btrfs]
[65332.480093] [<ffffffffa057f256>] normal_work_helper+0xc6/0x280 [btrfs]
[65332.480097] [<ffffffff8108c8cf>] process_one_work+0x17f/0x420
[65332.480100] [<ffffffff8108cfcb>] worker_thread+0x11b/0x510
[65332.480102] [<ffffffff8108ceb0>] ? rescuer_thread+0x340/0x340
[65332.480106] [<ffffffff81092671>] kthread+0xe1/0x100
[65332.480109] [<ffffffff81092590>] ? kthread_create_on_node+0x1a0/0x1a0
[65332.480115] [<ffffffff8163e37c>] ret_from_fork+0x7c/0xb0
[65332.480117] [<ffffffff81092590>] ? kthread_create_on_node+0x1a0/0x1a0
[65332.480119] ---[ end trace fc1325844b8e13c2 ]---
[65332.618477] ------------[ cut here ]------------
Thanks,
Masayoshi Mizuma
reply other threads:[~2014-08-28 8:45 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53FEEBAB.90305@jp.fujitsu.com \
--to=m.mizuma@jp.fujitsu.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.