From: Timofey Titovets <nefelim4ag@gmail.com>
To: Jerome Marchand <jmarchan@redhat.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: minchan@kernel.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Nitin Gupta <ngupta@vflare.org>
Subject: Re: [PATCH v2] zram: auto add/del devices on demand
Date: Thu, 17 Jul 2014 18:19:16 +0300 [thread overview]
Message-ID: <53C7E974.7080001@gmail.com> (raw)
In-Reply-To: <53C7DADC.3060508@redhat.com>
On 07/17/2014 05:17 PM, Jerome Marchand wrote:
> Looks like it:
>
> $ cat conctest.sh
> #! /bin/sh
>
> modprobe zram
>
> while true; do
> for i in `seq 1 10`; do
> echo 10485760 > /sys/block/zram0/disksize&
> echo 1 > /sys/block/zram0/reset&
> done
> done
> $ sudo ./conctest.sh
>
> [ 51.535387] ------------[ cut here ]------------
> [ 51.536305] WARNING: CPU: 0 PID: 840 at fs/kernfs/dir.c:1209
> kernfs_remove_by_name_ns+0x95/0xa0()
> [ 51.537908] kernfs: can not remove 'max_comp_streams', no directory
> [ 51.539089] Modules linked in: zram lz4_compress xt_conntrack
> cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc
> ebtable_filter ebtables ip6_tables iptable_nat nf_conntrack_ipv4
> nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle
> iptable_security iptable_raw ppdev crct10dif_pclmul crc32_pclmul
> crc32c_intel joydev ghash_clmulni_intel microcode serio_raw pcspkr
> virtio_balloon virtio_console parport_pc pvpanic virtio_net parport
> floppy i2c_piix4 nfsd auth_rpcgss nfs_acl lockd sunrpc qxl
> drm_kms_helper ttm virtio_blk drm virtio_pci virtio_ring virtio
> ata_generic pata_acpi
> [ 51.550844] CPU: 0 PID: 840 Comm: conc_init.sh Tainted: G D W
> 3.16.0-rc5-memacct-next-20140715+ #146
> [ 51.552606] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
> [ 51.553691] 0000000000000009 ffff880078343d20 ffffffff8172d344
> ffff880078343d68
> [ 51.555412] ffff880078343d58 ffffffff8108ad1d 0000000000000000
> ffffffffa0320242
> [ 51.557811] ffffffffa0321058 0000000000000002 ffff880078343f50
> ffff880078343db8
> [ 51.559580] Call Trace:
> [ 51.560139] [<ffffffff8172d344>] dump_stack+0x45/0x56
> [ 51.561161] [<ffffffff8108ad1d>] warn_slowpath_common+0x7d/0xa0
> [ 51.562333] [<ffffffff8108ad8c>] warn_slowpath_fmt+0x4c/0x50
> [ 51.563445] [<ffffffff81218196>] ? evict+0x106/0x170
> [ 51.564432] [<ffffffff81275695>] kernfs_remove_by_name_ns+0x95/0xa0
> [ 51.565627] [<ffffffff81277ee9>] remove_files.isra.1+0x39/0x70
> [ 51.566753] [<ffffffff812781f4>] sysfs_remove_group+0x44/0xa0
> [ 51.567870] [<ffffffffa031e058>] destroy_device.isra.17+0x28/0x50
> [zram]
> [ 51.569089] [<ffffffffa031e5d0>] reset_store+0x100/0x140 [zram]
> [ 51.570197] [<ffffffff8146c3e8>] dev_attr_store+0x18/0x30
> [ 51.571247] [<ffffffff81276fd4>] sysfs_kf_write+0x44/0x60
> [ 51.572201] [<ffffffff812768d7>] kernfs_fop_write+0xe7/0x170
> [ 51.573283] [<ffffffff811fbcf7>] vfs_write+0xb7/0x1f0
> [ 51.574143] [<ffffffff811fc8a9>] SyS_write+0x49/0xb0
> [ 51.574976] [<ffffffff8112e724>] ? __audit_syscall_entry+0xb4/0x110
> [ 51.576213] [<ffffffff817362a9>] system_call_fastpath+0x16/0x1b
> [ 51.577422] ---[ end trace cdb79035dad379f3 ]---
> [ 51.578401] ------------[ cut here ]------------
> [ 51.579354] WARNING: CPU: 0 PID: 840 at fs/kernfs/dir.c:1209
> kernfs_remove_by_name_ns+0x95/0xa0()
> [ 51.580966] kernfs: can not remove 'comp_algorithm', no directory
> [ 51.582108] Modules linked in: zram lz4_compress xt_conntrack
> cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc
> ebtable_filter ebtables ip6_tables iptable_nat nf_conntrack_ipv4
> nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle
> iptable_security iptable_raw ppdev crct10dif_pclmul crc32_pclmul
> crc32c_intel joydev ghash_clmulni_intel microcode serio_raw pcspkr
> virtio_balloon virtio_console parport_pc pvpanic virtio_net parport
> floppy i2c_piix4 nfsd auth_rpcgss nfs_acl lockd sunrpc qxl
> drm_kms_helper ttm virtio_blk drm virtio_pci virtio_ring virtio
> ata_generic pata_acpi
> [ 51.597177] CPU: 0 PID: 840 Comm: conc_init.sh Tainted: G D W
> 3.16.0-rc5-memacct-next-20140715+ #146
> [ 51.598549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
> [ 51.599661] 0000000000000009 ffff880078343d20 ffffffff8172d344
> ffff880078343d68
> [ 51.601519] ffff880078343d58 ffffffff8108ad1d 0000000000000000
> ffffffffa0320233
> [ 51.603362] ffffffffa0321058 0000000000000002 ffff880078343f50
> ffff880078343db8
> [ 51.604913] Call Trace:
> [ 51.605444] [<ffffffff8172d344>] dump_stack+0x45/0x56
> [ 51.606537] [<ffffffff8108ad1d>] warn_slowpath_common+0x7d/0xa0
> [ 51.607507] [<ffffffff8108ad8c>] warn_slowpath_fmt+0x4c/0x50
> [ 51.608582] [<ffffffff81218196>] ? evict+0x106/0x170
> [ 51.609423] [<ffffffff81275695>] kernfs_remove_by_name_ns+0x95/0xa0
> [ 51.610436] [<ffffffff81277ee9>] remove_files.isra.1+0x39/0x70
> [ 51.611408] [<ffffffff812781f4>] sysfs_remove_group+0x44/0xa0
> [ 51.612431] [<ffffffffa031e058>] destroy_device.isra.17+0x28/0x50
> [zram]
> [ 51.613214] [<ffffffffa031e5d0>] reset_store+0x100/0x140 [zram]
> [ 51.613928] [<ffffffff8146c3e8>] dev_attr_store+0x18/0x30
> [ 51.614634] [<ffffffff81276fd4>] sysfs_kf_write+0x44/0x60
> [ 51.615387] [<ffffffff812768d7>] kernfs_fop_write+0xe7/0x170
> [ 51.616246] [<ffffffff811fbcf7>] vfs_write+0xb7/0x1f0
> [ 51.619107] [<ffffffff811fc8a9>] SyS_write+0x49/0xb0
> [ 51.620063] [<ffffffff8112e724>] ? __audit_syscall_entry+0xb4/0x110
> [ 51.622071] [<ffffffff817362a9>] system_call_fastpath+0x16/0x1b
> [ 51.623256] ---[ end trace cdb79035dad379f4 ]---
>
> And lots more of similar messages.
>
> Jerome
>
Thanks for catching, i try fix it and resend patch.
next prev parent reply other threads:[~2014-07-17 15:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-17 12:27 [PATCH v2] zram: auto add/del devices on demand Timofey Titovets
2014-07-17 14:04 ` Sergey Senozhatsky
2014-07-17 14:17 ` Jerome Marchand
2014-07-17 15:19 ` Timofey Titovets [this message]
2014-07-17 16:18 ` Timofey Titovets
2014-07-17 15:01 ` Timofey Titovets
2014-07-17 15:26 ` Jerome Marchand
2014-07-17 15:45 ` Timofey Titovets
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