From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: Jan Kara <jack@suse.cz>
Cc: anna.schumaker@netapp.com, hch@lst.de,
trond.myklebust@primarydata.com, axboe@fb.com,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [BUG] cannot mount nfs, bisected to 0db10944a76ba ("nfs: Convert to separately allocated bdi")
Date: Tue, 2 May 2017 19:22:22 +0200 [thread overview]
Message-ID: <20170502172222.GA28711@Red> (raw)
In-Reply-To: <20170502162704.GM13916@quack2.suse.cz>
On Tue, May 02, 2017 at 06:27:04PM +0200, Jan Kara wrote:
> Hello,
>
> On Fri 28-04-17 11:56:24, Corentin Labbe wrote:
> > Since linux next-20170421, mounting nfs give me:
> > [ 774.994934] ------------[ cut here ]------------
> > [ 774.994975] WARNING: CPU: 1 PID: 10284 at /linux-next/fs/sysfs/dir.c:31 sysfs_warn_dup+0x64/0x74
> > [ 774.994985] sysfs: cannot create duplicate filename '/devices/virtual/bdi/0:32'
> > [ 774.994992] Modules linked in: axp20x_usb_power gpio_axp209 nvmem_sunxi_sid sun4i_dma sun4i_ss virt_dma
> > [ 774.995047] CPU: 1 PID: 10284 Comm: mount.nfs Not tainted 4.11.0-rc4+ #14
> > [ 774.995054] Hardware name: Allwinner sun7i (A20) Family
> > [ 774.995085] [<c010f19c>] (unwind_backtrace) from [<c010bc74>] (show_stack+0x10/0x14)
> > [ 774.995104] [<c010bc74>] (show_stack) from [<c03c6e24>] (dump_stack+0x78/0x8c)
> > [ 774.995121] [<c03c6e24>] (dump_stack) from [<c0122200>] (__warn+0xe8/0x100)
> > [ 774.995135] [<c0122200>] (__warn) from [<c0122250>] (warn_slowpath_fmt+0x38/0x48)
> > [ 774.995150] [<c0122250>] (warn_slowpath_fmt) from [<c02ac178>] (sysfs_warn_dup+0x64/0x74)
> > [ 774.995167] [<c02ac178>] (sysfs_warn_dup) from [<c02ac254>] (sysfs_create_dir_ns+0x84/0x94)
> > [ 774.995184] [<c02ac254>] (sysfs_create_dir_ns) from [<c03c8b8c>] (kobject_add_internal+0x9c/0x2ec)
> > [ 774.995199] [<c03c8b8c>] (kobject_add_internal) from [<c03c8e24>] (kobject_add+0x48/0x98)
> > [ 774.995217] [<c03c8e24>] (kobject_add) from [<c048d75c>] (device_add+0xe4/0x5a0)
> > [ 774.995232] [<c048d75c>] (device_add) from [<c048ddb4>] (device_create_groups_vargs+0xac/0xbc)
> > [ 774.995247] [<c048ddb4>] (device_create_groups_vargs) from [<c048dde4>] (device_create_vargs+0x20/0x28)
> > [ 774.995263] [<c048dde4>] (device_create_vargs) from [<c02075c8>] (bdi_register_va+0x44/0xfc)
> > [ 774.995280] [<c02075c8>] (bdi_register_va) from [<c023d378>] (super_setup_bdi_name+0x48/0xa4)
> > [ 774.995299] [<c023d378>] (super_setup_bdi_name) from [<c0312ef4>] (nfs_fill_super+0x1a4/0x204)
> > [ 774.995315] [<c0312ef4>] (nfs_fill_super) from [<c03133f0>] (nfs_fs_mount_common+0x140/0x1e8)
> > [ 774.995333] [<c03133f0>] (nfs_fs_mount_common) from [<c03335cc>] (nfs4_remote_mount+0x50/0x58)
> > [ 774.995349] [<c03335cc>] (nfs4_remote_mount) from [<c023ef98>] (mount_fs+0x14/0xa4)
> > [ 774.995368] [<c023ef98>] (mount_fs) from [<c025cba0>] (vfs_kern_mount+0x54/0x128)
> > [ 774.995385] [<c025cba0>] (vfs_kern_mount) from [<c033352c>] (nfs_do_root_mount+0x80/0xa0)
> > [ 774.995400] [<c033352c>] (nfs_do_root_mount) from [<c0333818>] (nfs4_try_mount+0x28/0x3c)
> > [ 774.995415] [<c0333818>] (nfs4_try_mount) from [<c0313874>] (nfs_fs_mount+0x2cc/0x8c4)
> > [ 774.995430] [<c0313874>] (nfs_fs_mount) from [<c023ef98>] (mount_fs+0x14/0xa4)
> > [ 774.995445] [<c023ef98>] (mount_fs) from [<c025cba0>] (vfs_kern_mount+0x54/0x128)
> > [ 774.995461] [<c025cba0>] (vfs_kern_mount) from [<c02600f0>] (do_mount+0x158/0xc7c)
> > [ 774.995475] [<c02600f0>] (do_mount) from [<c0260f98>] (SyS_mount+0x8c/0xb4)
> > [ 774.995491] [<c0260f98>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
> > [ 774.995501] ---[ end trace 0665e451f8864ff0 ]---
> ...
> > The mount command is
> > mount -t nfs -o tcp,hard,intr,async,rsize=4096,wsize=4096 192.168.1.100:/mnt/local_kernel /usr/src/
> >
> > the mount command failling with: "mount.nfs: Cannot allocate memory"
>
> I've tried reproducing this (both with NFSv3 and NFSv4) and failed. Also I
> have looked through the code and I fail to see how this could happen. Is
> this the only NFS mount that you have on your system? Didn't also the
> WARN_ON in super_setup_bdi_name() trigger?
>
> Can you run with the attached debug patch and post full dmesg after the
> failure?
>
Hello
I forgot to said that I have 6 nfs mount point.
mount -t nfs -o ro,tcp,hard,intr,async,vers=3 192.168.1.100:/usr/portage /usr/portage/
mount -t nfs -o tcp,hard,intr,async,vers=3 192.168.1.100:/usr/local/portage /usr/local/portage/
mount -t nfs -o tcp,hard,intr,async,vers=3 192.168.1.100:/mnt/tempo/portages/distfiles /usr/portage/distfiles
mount -t nfs -o tcp,hard,intr,async,vers=4 192.168.1.100:/mnt/tempo/portages/cubiedev/packages /usr/portage/packages
mount -t nfs -o tcp,hard,intr,async,vers=4,rsize=4096,wsize=4096 192.168.1.100:/var/tmp/portage/cubie /var/tmp/portage/
mount -t nfs -o tcp,hard,intr,async,rsize=4096,wsize=4096 192.168.1.100:/mnt/tempo/cubie/local_kernel /usr/src/
It's always the last which fail, but strangely inverting the two last made everything ok.
[ 63.424216] Registering bdi 0:29 for server edcdcc00
[ 63.424245] CPU: 1 PID: 2409 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.424253] Hardware name: Allwinner sun7i (A20) Family
[ 63.424285] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.424304] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.424323] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.424339] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.424354] [<c0311b7c>] (nfs_fs_mount_common) from [<c0312834>] (nfs_try_mount+0x110/0x268)
[ 63.424369] [<c0312834>] (nfs_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.424387] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.424403] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.424418] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.424432] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.424448] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 63.474416] Registering bdi 0:30 for server ee40b800
[ 63.474442] CPU: 1 PID: 2413 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.474450] Hardware name: Allwinner sun7i (A20) Family
[ 63.474488] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.474507] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.474527] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.474544] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.474559] [<c0311b7c>] (nfs_fs_mount_common) from [<c0312834>] (nfs_try_mount+0x110/0x268)
[ 63.474574] [<c0312834>] (nfs_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.474591] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.474609] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.474625] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.474640] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.474656] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 63.532851] Registering bdi 0:31 for server edd48c00
[ 63.532877] CPU: 1 PID: 2416 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.532885] Hardware name: Allwinner sun7i (A20) Family
[ 63.532924] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.532946] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.532967] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.532984] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.532999] [<c0311b7c>] (nfs_fs_mount_common) from [<c0312834>] (nfs_try_mount+0x110/0x268)
[ 63.533014] [<c0312834>] (nfs_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.533032] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.533049] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.533064] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.533079] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.533096] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 63.607887] Registering bdi 0:32 for server edc7c400
[ 63.607914] CPU: 1 PID: 2419 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.607923] Hardware name: Allwinner sun7i (A20) Family
[ 63.607955] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.607975] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.607995] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.608012] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.608028] [<c0311b7c>] (nfs_fs_mount_common) from [<c0332014>] (nfs4_remote_mount+0x50/0x58)
[ 63.608044] [<c0332014>] (nfs4_remote_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.608060] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.608077] [<c0258ffc>] (vfs_kern_mount) from [<c0331f74>] (nfs_do_root_mount+0x80/0xa0)
[ 63.608092] [<c0331f74>] (nfs_do_root_mount) from [<c0332260>] (nfs4_try_mount+0x28/0x3c)
[ 63.608105] [<c0332260>] (nfs4_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.608121] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.608135] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.608150] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.608164] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.608181] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 63.711978] Unregistering bdi 0:32
[ 63.712008] CPU: 1 PID: 2419 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.712016] Hardware name: Allwinner sun7i (A20) Family
[ 63.712054] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.712072] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.712091] [<c03c7b68>] (dump_stack) from [<c0204120>] (bdi_unregister+0x34/0x18c)
[ 63.712107] [<c0204120>] (bdi_unregister) from [<c020436c>] (bdi_put+0xf4/0x13c)
[ 63.712124] [<c020436c>] (bdi_put) from [<c0239728>] (generic_shutdown_super+0xdc/0xf8)
[ 63.712143] [<c0239728>] (generic_shutdown_super) from [<c0311cc4>] (nfs_kill_super+0x14/0x30)
[ 63.712160] [<c0311cc4>] (nfs_kill_super) from [<c0239e9c>] (deactivate_locked_super+0x58/0x7c)
[ 63.712176] [<c0239e9c>] (deactivate_locked_super) from [<c025945c>] (cleanup_mnt+0x38/0x7c)
[ 63.712192] [<c025945c>] (cleanup_mnt) from [<c013fd9c>] (task_work_run+0xc4/0xf8)
[ 63.712209] [<c013fd9c>] (task_work_run) from [<c010b61c>] (do_work_pending+0x7c/0xa4)
[ 63.712225] [<c010b61c>] (do_work_pending) from [<c0107894>] (slow_work_pending+0xc/0x20)
[ 63.795383] Registering bdi 0:32 for server edd49800
[ 63.795409] CPU: 1 PID: 2419 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.795417] Hardware name: Allwinner sun7i (A20) Family
[ 63.795455] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.795475] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.795496] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.795513] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.795528] [<c0311b7c>] (nfs_fs_mount_common) from [<c0312834>] (nfs_try_mount+0x110/0x268)
[ 63.795543] [<c0312834>] (nfs_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.795561] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.795578] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.795594] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.795609] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.795626] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 63.862429] Registering bdi 0:33 for server edd4a400
[ 63.862455] CPU: 1 PID: 2429 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 63.862463] Hardware name: Allwinner sun7i (A20) Family
[ 63.862502] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 63.862521] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 63.862541] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 63.862560] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 63.862575] [<c0311b7c>] (nfs_fs_mount_common) from [<c0332014>] (nfs4_remote_mount+0x50/0x58)
[ 63.862593] [<c0332014>] (nfs4_remote_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.862611] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.862628] [<c0258ffc>] (vfs_kern_mount) from [<c0331f74>] (nfs_do_root_mount+0x80/0xa0)
[ 63.862643] [<c0331f74>] (nfs_do_root_mount) from [<c0332260>] (nfs4_try_mount+0x28/0x3c)
[ 63.862657] [<c0332260>] (nfs4_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 63.862672] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 63.862686] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 63.862701] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 63.862716] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 63.862732] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 64.094628] Registering bdi 0:33 for server edc87800
[ 64.094655] CPU: 1 PID: 2437 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 64.094663] Hardware name: Allwinner sun7i (A20) Family
[ 64.094702] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 64.094722] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 64.094742] [<c03c7b68>] (dump_stack) from [<c0311664>] (nfs_fill_super+0x1a8/0x224)
[ 64.094760] [<c0311664>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 64.094777] [<c0311b7c>] (nfs_fs_mount_common) from [<c0332014>] (nfs4_remote_mount+0x50/0x58)
[ 64.094794] [<c0332014>] (nfs4_remote_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.094812] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.094829] [<c0258ffc>] (vfs_kern_mount) from [<c0331f74>] (nfs_do_root_mount+0x80/0xa0)
[ 64.094844] [<c0331f74>] (nfs_do_root_mount) from [<c0332260>] (nfs4_try_mount+0x28/0x3c)
[ 64.094858] [<c0332260>] (nfs4_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 64.094873] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.094888] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.094902] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 64.094917] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 64.094934] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 64.095053] ------------[ cut here ]------------
[ 64.095072] WARNING: CPU: 1 PID: 2437 at /mnt/linux-next/fs/sysfs/dir.c:31 sysfs_warn_dup+0x64/0x74
[ 64.095081] sysfs: cannot create duplicate filename '/devices/virtual/bdi/0:33'
[ 64.095088] Modules linked in: axp20x_usb_power axp20x_ac_power axp20x_adc gpio_axp209 nvmem_sunxi_sid sun4i_dma sun4i_ss virt_dma
[ 64.095154] CPU: 1 PID: 2437 Comm: mount.nfs Not tainted 4.11.0-next-20170502+ #100
[ 64.095162] Hardware name: Allwinner sun7i (A20) Family
[ 64.095179] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 64.095194] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 64.095210] [<c03c7b68>] (dump_stack) from [<c01222d4>] (__warn+0xe8/0x100)
[ 64.095224] [<c01222d4>] (__warn) from [<c0122324>] (warn_slowpath_fmt+0x38/0x48)
[ 64.095240] [<c0122324>] (warn_slowpath_fmt) from [<c02a8d4c>] (sysfs_warn_dup+0x64/0x74)
[ 64.095256] [<c02a8d4c>] (sysfs_warn_dup) from [<c02a8e28>] (sysfs_create_dir_ns+0x84/0x94)
[ 64.095273] [<c02a8e28>] (sysfs_create_dir_ns) from [<c03c98d0>] (kobject_add_internal+0x9c/0x2ec)
[ 64.095290] [<c03c98d0>] (kobject_add_internal) from [<c03c9b68>] (kobject_add+0x48/0x98)
[ 64.095309] [<c03c9b68>] (kobject_add) from [<c048f7bc>] (device_add+0xe4/0x5a0)
[ 64.095326] [<c048f7bc>] (device_add) from [<c048fe14>] (device_create_groups_vargs+0xac/0xbc)
[ 64.095341] [<c048fe14>] (device_create_groups_vargs) from [<c048fe44>] (device_create_vargs+0x20/0x28)
[ 64.095358] [<c048fe44>] (device_create_vargs) from [<c0203ab0>] (bdi_register_va+0x44/0xfc)
[ 64.095375] [<c0203ab0>] (bdi_register_va) from [<c0239a4c>] (super_setup_bdi_name+0x44/0xa0)
[ 64.095393] [<c0239a4c>] (super_setup_bdi_name) from [<c0311680>] (nfs_fill_super+0x1c4/0x224)
[ 64.095409] [<c0311680>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 64.095423] [<c0311b7c>] (nfs_fs_mount_common) from [<c0332014>] (nfs4_remote_mount+0x50/0x58)
[ 64.095437] [<c0332014>] (nfs4_remote_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.095451] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.095467] [<c0258ffc>] (vfs_kern_mount) from [<c0331f74>] (nfs_do_root_mount+0x80/0xa0)
[ 64.095482] [<c0331f74>] (nfs_do_root_mount) from [<c0332260>] (nfs4_try_mount+0x28/0x3c)
[ 64.095496] [<c0332260>] (nfs4_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 64.095511] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.095525] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.095538] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 64.095553] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 64.095568] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 64.095577] ---[ end trace 5cd276530ddd30a7 ]---
[ 64.095588] ------------[ cut here ]------------
[ 64.095603] WARNING: CPU: 1 PID: 2437 at /mnt/linux-next/lib/kobject.c:240 kobject_add_internal+0x274/0x2ec
[ 64.095612] kobject_add_internal failed for 0:33 with -EEXIST, don't try to register things with the same name in the same directory.
[ 64.095618] Modules linked in: axp20x_usb_power axp20x_ac_power axp20x_adc gpio_axp209 nvmem_sunxi_sid sun4i_dma sun4i_ss virt_dma
[ 64.095679] CPU: 1 PID: 2437 Comm: mount.nfs Tainted: G W 4.11.0-next-20170502+ #100
[ 64.095687] Hardware name: Allwinner sun7i (A20) Family
[ 64.095702] [<c010f268>] (unwind_backtrace) from [<c010bd38>] (show_stack+0x10/0x14)
[ 64.095716] [<c010bd38>] (show_stack) from [<c03c7b68>] (dump_stack+0x78/0x8c)
[ 64.095730] [<c03c7b68>] (dump_stack) from [<c01222d4>] (__warn+0xe8/0x100)
[ 64.095743] [<c01222d4>] (__warn) from [<c0122324>] (warn_slowpath_fmt+0x38/0x48)
[ 64.095758] [<c0122324>] (warn_slowpath_fmt) from [<c03c9aa8>] (kobject_add_internal+0x274/0x2ec)
[ 64.095775] [<c03c9aa8>] (kobject_add_internal) from [<c03c9b68>] (kobject_add+0x48/0x98)
[ 64.095790] [<c03c9b68>] (kobject_add) from [<c048f7bc>] (device_add+0xe4/0x5a0)
[ 64.095806] [<c048f7bc>] (device_add) from [<c048fe14>] (device_create_groups_vargs+0xac/0xbc)
[ 64.095821] [<c048fe14>] (device_create_groups_vargs) from [<c048fe44>] (device_create_vargs+0x20/0x28)
[ 64.095836] [<c048fe44>] (device_create_vargs) from [<c0203ab0>] (bdi_register_va+0x44/0xfc)
[ 64.095851] [<c0203ab0>] (bdi_register_va) from [<c0239a4c>] (super_setup_bdi_name+0x44/0xa0)
[ 64.095868] [<c0239a4c>] (super_setup_bdi_name) from [<c0311680>] (nfs_fill_super+0x1c4/0x224)
[ 64.095883] [<c0311680>] (nfs_fill_super) from [<c0311b7c>] (nfs_fs_mount_common+0x140/0x1e8)
[ 64.095897] [<c0311b7c>] (nfs_fs_mount_common) from [<c0332014>] (nfs4_remote_mount+0x50/0x58)
[ 64.095911] [<c0332014>] (nfs4_remote_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.095926] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.095940] [<c0258ffc>] (vfs_kern_mount) from [<c0331f74>] (nfs_do_root_mount+0x80/0xa0)
[ 64.095955] [<c0331f74>] (nfs_do_root_mount) from [<c0332260>] (nfs4_try_mount+0x28/0x3c)
[ 64.095969] [<c0332260>] (nfs4_try_mount) from [<c0312014>] (nfs_fs_mount+0x2e0/0x8ec)
[ 64.095984] [<c0312014>] (nfs_fs_mount) from [<c023b66c>] (mount_fs+0x14/0xa4)
[ 64.095999] [<c023b66c>] (mount_fs) from [<c0258ffc>] (vfs_kern_mount+0x54/0x128)
[ 64.096012] [<c0258ffc>] (vfs_kern_mount) from [<c025c54c>] (do_mount+0x158/0xc7c)
[ 64.096026] [<c025c54c>] (do_mount) from [<c025d3f4>] (SyS_mount+0x8c/0xb4)
[ 64.096041] [<c025d3f4>] (SyS_mount) from [<c0107840>] (ret_fast_syscall+0x0/0x3c)
[ 64.096049] ---[ end trace 5cd276530ddd30a8 ]---
next prev parent reply other threads:[~2017-05-02 17:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 9:56 [BUG] cannot mount nfs, bisected to 0db10944a76ba ("nfs: Convert to separately allocated bdi") Corentin Labbe
2017-04-28 10:09 ` Jan Kara
2017-05-02 16:27 ` Jan Kara
2017-05-02 16:27 ` Jan Kara
2017-05-02 17:22 ` Corentin Labbe [this message]
2017-05-03 11:44 ` Jan Kara
2017-05-03 11:44 ` Jan Kara
2017-05-03 17:19 ` Corentin Labbe
2017-05-04 6:59 ` Jan Kara
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=20170502172222.GA28711@Red \
--to=clabbe.montjoie@gmail.com \
--cc=anna.schumaker@netapp.com \
--cc=axboe@fb.com \
--cc=hch@lst.de \
--cc=jack@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nfs@vger.kernel.org \
--cc=trond.myklebust@primarydata.com \
/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.