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From: CAI Qian <caiqian@redhat.com>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Dave Chinner <david@fromorbit.com>,
	linux-xfs <linux-xfs@vger.kernel.org>,
	Jens Axboe <axboe@kernel.dk>, Nick Piggin <npiggin@gmail.com>,
	linux-fsdevel@vger.kernel.org
Subject: Re: [RFC][CFT] splice_read reworked
Date: Tue, 4 Oct 2016 09:29:35 -0400 (EDT)
Message-ID: <1209071853.342152.1475587775353.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <20161003203539.GW19539@ZenIV.linux.org.uk>



----- Original Message -----
> From: "Al Viro" <viro@ZenIV.linux.org.uk>
> To: "CAI Qian" <caiqian@redhat.com>
> Cc: "Linus Torvalds" <torvalds@linux-foundation.org>, "Dave Chinner" <david@fromorbit.com>, "linux-xfs"
> <linux-xfs@vger.kernel.org>, "Jens Axboe" <axboe@kernel.dk>, "Nick Piggin" <npiggin@gmail.com>,
> linux-fsdevel@vger.kernel.org
> Sent: Monday, October 3, 2016 4:35:40 PM
> Subject: Re: [RFC][CFT] splice_read reworked
> 
> On Mon, Oct 03, 2016 at 04:32:19PM -0400, CAI Qian wrote:
> > > It is pretty reproducible so far by just running the trinity from a
> > > docker
> > > container backed by overlayfs/xfs.
> > > 
> > > # su - test
> > > $ trinity
> > Also, AFACIT, this is NOT reproducible on v4.8 mainline, but only with this
> > splice_read reworked branch of vfs tree.
> 
> I would be very surprised if mainline had somehow managed to trip sanity
> checks added in vfs tree ;-)
> 
> Is there any way to record the sequence of syscalls leading to that?
> 
Yes, a bit long shot though.

http://people.redhat.com/qcai/tmp/trinity-child113.log

This one triggered the warning at lib/iov_iter.c:316 sanity+0x6b/0x6
3 times at once.

[ 2200.510753] ------------[ cut here ]------------
[ 2200.515929] WARNING: CPU: 9 PID: 116624 at lib/iov_iter.c:316 sanity+0x6b/0x6f
[ 2200.523999] Modules linked in: 8021q garp mrp fuse dlci vmw_vsock_vmci_transport vsock vmw_vmci af_key ieee802154_socket ieee802154 hidp cmtp kernelcapi bnep rfcomm bluetooth rfkill can_bcm can_raw can pptp gre l2tp_ppp l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel pppoe pppox ppp_generic slhc nfnetlink scsi_transport_iscsi atm sctp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support pcspkr i2c_i801 i2c_smbus mei_me ipmi_ssif sg lpc_ich mei shpchp wmi ipmi_si ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod sd_mod cdrom mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops crc32c_intel ttm ixgbe drm ahci mdio libahci ptp libata pps_core i2c_core dca fjes dm_mirror dm_region_hash dm_log dm_mod
[ 2200.644251] CPU: 9 PID: 116624 Comm: trinity-c113 Not tainted 4.8.0-rc8-splice+ #1
[ 2200.652708] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0044.R00.1501191641 01/19/2015
[ 2200.664062]  0000000000000286 00000000bad46fa7 ffff8803d1ca7b30 ffffffff813d2eac
[ 2200.672368]  0000000000000000 0000000000000000 ffff8803d1ca7b70 ffffffff8109cf11
[ 2200.680660]  0000013c2e32bdc8 ffffea000eea7540 0000000000001000 ffff88030e9a0000
[ 2200.688954] Call Trace:
[ 2200.691686]  [<ffffffff813d2eac>] dump_stack+0x85/0xc9
[ 2200.697433]  [<ffffffff8109cf11>] __warn+0xd1/0xf0
[ 2200.702777]  [<ffffffff8109d04d>] warn_slowpath_null+0x1d/0x20
[ 2200.709285]  [<ffffffff81418c93>] sanity+0x6b/0x6f
[ 2200.714630]  [<ffffffff813e9586>] copy_page_to_iter+0xf6/0x1e0
[ 2200.721139]  [<ffffffff811e3906>] generic_file_read_iter+0x406/0x800
[ 2200.728231]  [<ffffffff810f8afd>] ? down_read_nested+0x4d/0x80
[ 2200.734798]  [<ffffffffa02c46ae>] ? xfs_ilock+0x1ae/0x260 [xfs]
[ 2200.741433]  [<ffffffffa02b3f2f>] xfs_file_buffered_aio_read+0x6f/0x1b0 [xfs]
[ 2200.749412]  [<ffffffffa02b46e8>] xfs_file_read_iter+0x68/0xc0 [xfs]
[ 2200.756504]  [<ffffffff812bb359>] generic_file_splice_read+0xb9/0x1b0
[ 2200.763691]  [<ffffffff812bb913>] do_splice_to+0x73/0x90
[ 2200.769618]  [<ffffffff812bba1b>] splice_direct_to_actor+0xeb/0x220
[ 2200.776610]  [<ffffffff812baee0>] ? generic_pipe_buf_nosteal+0x10/0x10
[ 2200.783893]  [<ffffffff812bbbd9>] do_splice_direct+0x89/0xd0
[ 2200.790207]  [<ffffffff8128261e>] do_sendfile+0x1ce/0x3b0
[ 2200.796231]  [<ffffffff812831df>] SyS_sendfile64+0x6f/0xd0
[ 2200.802351]  [<ffffffff81003c9c>] do_syscall_64+0x6c/0x1e0
[ 2200.808471]  [<ffffffff817d4a3f>] entry_SYSCALL64_slow_path+0x25/0x25
[ 2200.815723] ---[ end trace e02dda43787dce2a ]---
[ 2200.821003] ------------[ cut here ]------------
[ 2200.826168] WARNING: CPU: 9 PID: 116624 at lib/iov_iter.c:316 sanity+0x6b/0x6f
[ 2200.834765] Modules linked in: 8021q garp mrp fuse dlci vmw_vsock_vmci_transport vsock vmw_vmci af_key ieee802154_socket ieee802154 hidp cmtp kernelcapi bnep rfcomm bluetooth rfkill can_bcm can_raw can pptp gre l2tp_ppp l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel pppoe pppox ppp_generic slhc nfnetlink scsi_transport_iscsi atm sctp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support pcspkr i2c_i801 i2c_smbus mei_me ipmi_ssif sg lpc_ich mei shpchp wmi ipmi_si ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod sd_mod cdrom mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops crc32c_intel ttm ixgbe drm ahci mdio libahci ptp libata pps_core i2c_core dca fjes dm_mirror dm_region_hash dm_log dm_mod
[ 2200.951286] CPU: 9 PID: 116624 Comm: trinity-c113 Tainted: G        W       4.8.0-rc8-splice+ #1
[ 2200.961088] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0044.R00.1501191641 01/19/2015
[ 2200.972443]  0000000000000286 00000000bad46fa7 ffff8803d1ca7b30 ffffffff813d2eac
[ 2200.980747]  0000000000000000 0000000000000000 ffff8803d1ca7b70 ffffffff8109cf11
[ 2200.989078]  0000013c00000000 ffffea000b711880 0000000000001000 ffff88030e9a0000
[ 2200.997375] Call Trace:
[ 2201.000107]  [<ffffffff813d2eac>] dump_stack+0x85/0xc9
[ 2201.005842]  [<ffffffff8109cf11>] __warn+0xd1/0xf0
[ 2201.011199]  [<ffffffff8109d04d>] warn_slowpath_null+0x1d/0x20
[ 2201.017708]  [<ffffffff81418c93>] sanity+0x6b/0x6f
[ 2201.023053]  [<ffffffff813e9586>] copy_page_to_iter+0xf6/0x1e0
[ 2201.029562]  [<ffffffff811e3906>] generic_file_read_iter+0x406/0x800
[ 2201.036654]  [<ffffffff810f8afd>] ? down_read_nested+0x4d/0x80
[ 2201.043213]  [<ffffffffa02c46ae>] ? xfs_ilock+0x1ae/0x260 [xfs]
[ 2201.049849]  [<ffffffffa02b3f2f>] xfs_file_buffered_aio_read+0x6f/0x1b0 [xfs]
[ 2201.057828]  [<ffffffffa02b46e8>] xfs_file_read_iter+0x68/0xc0 [xfs]
[ 2201.064919]  [<ffffffff812bb359>] generic_file_splice_read+0xb9/0x1b0
[ 2201.072108]  [<ffffffff812bb913>] do_splice_to+0x73/0x90
[ 2201.078034]  [<ffffffff812bba1b>] splice_direct_to_actor+0xeb/0x220
[ 2201.085026]  [<ffffffff812baee0>] ? generic_pipe_buf_nosteal+0x10/0x10
[ 2201.092309]  [<ffffffff812bbbd9>] do_splice_direct+0x89/0xd0
[ 2201.098623]  [<ffffffff8128261e>] do_sendfile+0x1ce/0x3b0
[ 2201.104646]  [<ffffffff812831df>] SyS_sendfile64+0x6f/0xd0
[ 2201.110768]  [<ffffffff81003c9c>] do_syscall_64+0x6c/0x1e0
[ 2201.116890]  [<ffffffff817d4a3f>] entry_SYSCALL64_slow_path+0x25/0x25
[ 2201.124136] ---[ end trace e02dda43787dce2b ]---
[ 2201.192680] ------------[ cut here ]------------
[ 2201.203826] WARNING: CPU: 9 PID: 116624 at lib/iov_iter.c:316 sanity+0x6b/0x6f
[ 2201.211899] Modules linked in: 8021q garp mrp fuse dlci vmw_vsock_vmci_transport vsock vmw_vmci af_key ieee802154_socket ieee802154 hidp cmtp kernelcapi bnep rfcomm bluetooth rfkill can_bcm can_raw can pptp gre l2tp_ppp l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel pppoe pppox ppp_generic slhc nfnetlink scsi_transport_iscsi atm sctp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support pcspkr i2c_i801 i2c_smbus mei_me ipmi_ssif sg lpc_ich mei shpchp wmi ipmi_si ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod sd_mod cdrom mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops crc32c_intel ttm ixgbe drm ahci mdio libahci ptp libata pps_core i2c_core dca fjes dm_mirror dm_region_hash dm_log dm_mod
[ 2201.329000] CPU: 9 PID: 116624 Comm: trinity-c113 Tainted: G        W       4.8.0-rc8-splice+ #1
[ 2201.338805] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0044.R00.1501191641 01/19/2015
[ 2201.350160]  0000000000000286 00000000bad46fa7 ffff8803d1ca7b30 ffffffff813d2eac
[ 2201.358455]  0000000000000000 0000000000000000 ffff8803d1ca7b70 ffffffff8109cf11
[ 2201.366747]  0000013c00000000 ffffea000be93cc0 0000000000001000 ffff88030e9a0000
[ 2201.375035] Call Trace:
[ 2201.377767]  [<ffffffff813d2eac>] dump_stack+0x85/0xc9
[ 2201.383499]  [<ffffffff8109cf11>] __warn+0xd1/0xf0
[ 2201.388843]  [<ffffffff8109d04d>] warn_slowpath_null+0x1d/0x20
[ 2201.395351]  [<ffffffff81418c93>] sanity+0x6b/0x6f
[ 2201.400695]  [<ffffffff813e9586>] copy_page_to_iter+0xf6/0x1e0
[ 2201.407204]  [<ffffffff811e3906>] generic_file_read_iter+0x406/0x800
[ 2201.414294]  [<ffffffff810f8afd>] ? down_read_nested+0x4d/0x80
[ 2201.420844]  [<ffffffffa02c46ae>] ? xfs_ilock+0x1ae/0x260 [xfs]
[ 2201.427463]  [<ffffffffa02b3f2f>] xfs_file_buffered_aio_read+0x6f/0x1b0 [xfs]
[ 2201.435451]  [<ffffffffa02b46e8>] xfs_file_read_iter+0x68/0xc0 [xfs]
[ 2201.442542]  [<ffffffff812bb359>] generic_file_splice_read+0xb9/0x1b0
[ 2201.449728]  [<ffffffff812bb913>] do_splice_to+0x73/0x90
[ 2201.455655]  [<ffffffff812bba1b>] splice_direct_to_actor+0xeb/0x220
[ 2201.462645]  [<ffffffff812baee0>] ? generic_pipe_buf_nosteal+0x10/0x10
[ 2201.469928]  [<ffffffff812bbbd9>] do_splice_direct+0x89/0xd0
[ 2201.476242]  [<ffffffff8128261e>] do_sendfile+0x1ce/0x3b0
[ 2201.482264]  [<ffffffff812831df>] SyS_sendfile64+0x6f/0xd0
[ 2201.488383]  [<ffffffff81003c9c>] do_syscall_64+0x6c/0x1e0
[ 2201.494504]  [<ffffffff817d4a3f>] entry_SYSCALL64_slow_path+0x25/0x25
[ 2201.501736] ---[ end trace e02dda43787dce2c ]---

   CAI Qian

  reply index

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20160908235521.GL2356@ZenIV.linux.org.uk>
     [not found] ` <20160909015324.GD30056@dastard>
     [not found]   ` <CA+55aFzohsUXj_3BeFNr2t50Wm=G+7toRDEz=Tk7VJqP3n1hXQ@mail.gmail.com>
     [not found]     ` <CA+55aFxrqCng2Qxasc9pyMrKUGFjo==fEaFT1vkH9Lncte3RgQ@mail.gmail.com>
     [not found]       ` <20160909023452.GO2356@ZenIV.linux.org.uk>
     [not found]         ` <CA+55aFwHQMjO4-vtfB9-ytc=o+DRo-HXVGckvXLboUxgpwb7_g@mail.gmail.com>
     [not found]           ` <20160909221945.GQ2356@ZenIV.linux.org.uk>
     [not found]             ` <CA+55aFzTOOB6oEVaaGD0N7Uznk-W9+ULPwzsxS_L_oZqGVSeLA@mail.gmail.com>
     [not found]               ` <20160914031648.GB2356@ZenIV.linux.org.uk>
     [not found]                 ` <20160914133925.2fba4629@roar.ozlabs.ibm.com>
2016-09-18  5:33                   ` xfs_file_splice_read: possible circular locking dependency detected Al Viro
2016-09-19  3:08                     ` Nicholas Piggin
2016-09-19  6:11                       ` Al Viro
2016-09-19  7:26                         ` Nicholas Piggin
     [not found]                 ` <CA+55aFznQaOWoSMNphgGJJWZ=8-odrc0DAUMzfGPQe+_N4UgNA@mail.gmail.com>
     [not found]                   ` <20160914042559.GC2356@ZenIV.linux.org.uk>
     [not found]                     ` <20160917082007.GA6489@ZenIV.linux.org.uk>
     [not found]                       ` <20160917190023.GA8039@ZenIV.linux.org.uk>
2016-09-18 19:31                         ` skb_splice_bits() and large chunks in pipe (was " Al Viro
2016-09-18 20:12                           ` Linus Torvalds
2016-09-18 22:31                             ` Al Viro
2016-09-19  0:18                               ` Linus Torvalds
2016-09-23 19:00                         ` [RFC][CFT] splice_read reworked Al Viro
2016-09-23 19:01                           ` [PATCH 01/11] fix memory leaks in tracing_buffers_splice_read() Al Viro
2016-09-23 19:02                           ` [PATCH 02/11] splice_to_pipe(): don't open-code wakeup_pipe_readers() Al Viro
2016-09-23 19:02                           ` [PATCH 03/11] splice: switch get_iovec_page_array() to iov_iter Al Viro
2016-09-23 19:03                           ` [PATCH 04/11] splice: lift pipe_lock out of splice_to_pipe() Al Viro
2016-09-23 19:45                             ` Linus Torvalds
2016-09-23 20:10                               ` Al Viro
2016-09-23 20:36                                 ` Linus Torvalds
2016-09-24  3:59                                   ` Al Viro
2016-09-24 17:29                                     ` Al Viro
2016-09-27 15:38                                       ` Nicholas Piggin
2016-09-27 15:53                                       ` Chuck Lever
2016-09-24  3:59                                   ` [PATCH 04/12] " Al Viro
2016-09-26 13:35                                     ` Miklos Szeredi
2016-09-27  4:14                                       ` Al Viro
2016-12-17 19:54                                     ` Andreas Schwab
2016-12-18 19:28                                       ` Linus Torvalds
2016-12-18 19:57                                         ` Andreas Schwab
2016-12-18 20:12                                         ` Al Viro
2016-12-18 20:30                                           ` Al Viro
2016-12-18 22:10                                             ` Linus Torvalds
2016-12-18 22:18                                               ` Al Viro
2016-12-18 22:22                                                 ` Linus Torvalds
2016-12-18 22:49                                               ` Andreas Schwab
2016-12-21 18:56                                               ` Andreas Schwab
2016-12-21 19:12                                                 ` Linus Torvalds
2016-09-24  4:00                                   ` [PATCH 06/12] new helper: add_to_pipe() Al Viro
2016-09-26 13:49                                     ` Miklos Szeredi
2016-09-24  4:01                                   ` [PATCH 10/12] new iov_iter flavour: pipe-backed Al Viro
2016-09-29 20:53                                     ` Miklos Szeredi
2016-09-29 22:50                                       ` Al Viro
2016-09-30  7:30                                         ` Miklos Szeredi
2016-10-03  3:34                                           ` [RFC] O_DIRECT vs EFAULT (was Re: [PATCH 10/12] new iov_iter flavour: pipe-backed) Al Viro
2016-10-03 17:07                                             ` Linus Torvalds
2016-10-03 18:54                                               ` Al Viro
2016-09-24  4:01                                   ` [PATCH 11/12] switch generic_file_splice_read() to use of ->read_iter() Al Viro
2016-09-24  4:02                                   ` [PATCH 12/12] switch default_file_splice_read() to use of pipe-backed iov_iter Al Viro
2016-09-23 19:03                           ` [PATCH 05/11] skb_splice_bits(): get rid of callback Al Viro
2016-09-23 19:04                           ` [PATCH 06/11] new helper: add_to_pipe() Al Viro
2016-09-23 19:04                           ` [PATCH 07/11] fuse_dev_splice_read(): switch to add_to_pipe() Al Viro
2016-09-23 19:06                           ` [PATCH 08/11] cifs: don't use memcpy() to copy struct iov_iter Al Viro
2016-09-23 19:08                           ` [PATCH 09/11] fuse_ioctl_copy_user(): don't open-code copy_page_{to,from}_iter() Al Viro
2016-09-26  9:31                             ` Miklos Szeredi
2016-09-23 19:09                           ` [PATCH 10/11] new iov_iter flavour: pipe-backed Al Viro
2016-09-23 19:10                           ` [PATCH 11/11] switch generic_file_splice_read() to use of ->read_iter() Al Viro
2016-09-30 13:32                           ` [RFC][CFT] splice_read reworked CAI Qian
2016-09-30 17:42                             ` CAI Qian
2016-09-30 18:33                               ` CAI Qian
2016-10-03  1:37                                 ` Al Viro
2016-10-03 17:49                                   ` CAI Qian
2016-10-04 17:39                                     ` local DoS - systemd hang or timeout (WAS: Re: [RFC][CFT] splice_read reworked) CAI Qian
2016-10-04 21:42                                       ` tj
2016-10-05 14:09                                         ` CAI Qian
2016-10-05 15:30                                           ` tj
2016-10-05 15:54                                             ` CAI Qian
2016-10-05 18:57                                               ` CAI Qian
2016-10-05 20:05                                                 ` Al Viro
2016-10-06 12:20                                                   ` CAI Qian
2016-10-06 12:25                                                     ` CAI Qian
2016-10-06 16:11                                                       ` CAI Qian
2016-10-06 17:00                                                         ` Linus Torvalds
2016-10-06 18:12                                                           ` CAI Qian
2016-10-07  9:57                                                           ` Dave Chinner
2016-10-07 15:25                                                             ` Linus Torvalds
2016-10-07  7:08                                                       ` Jan Kara
2016-10-07 14:43                                                         ` CAI Qian
2016-10-07 15:27                                                           ` CAI Qian
2016-10-07 18:56                                                             ` CAI Qian
2016-10-09 21:54                                                               ` Dave Chinner
2016-10-10 14:10                                                                 ` CAI Qian
2016-10-10 20:14                                                                   ` CAI Qian
2016-10-10 21:57                                                                   ` Dave Chinner
2016-10-12 19:50                                                                     ` [bisected] " CAI Qian
2016-10-12 20:59                                                                       ` Dave Chinner
2016-10-13 16:25                                                                         ` CAI Qian
2016-10-13 20:49                                                                           ` Dave Chinner
2016-10-13 20:56                                                                             ` CAI Qian
2016-10-09 21:51                                                           ` Dave Chinner
2016-10-21 15:38                                                         ` [4.9-rc1+] overlayfs lockdep CAI Qian
2016-10-24 12:57                                                           ` Miklos Szeredi
2016-10-07  9:27                                                     ` local DoS - systemd hang or timeout (WAS: Re: [RFC][CFT] splice_read reworked) Dave Chinner
2016-10-03  1:42                               ` [RFC][CFT] splice_read reworked Al Viro
2016-10-03 14:06                                 ` CAI Qian
2016-10-03 15:20                                   ` CAI Qian
2016-10-03 21:12                                     ` Dave Chinner
2016-10-04 13:57                                       ` CAI Qian
2016-10-03 20:32                                   ` CAI Qian
2016-10-03 20:35                                     ` Al Viro
2016-10-04 13:29                                       ` CAI Qian [this message]
2016-10-04 14:28                                         ` Al Viro
2016-10-04 16:21                                           ` CAI Qian
2016-10-04 20:12                                             ` Al Viro
2016-10-05 14:30                                               ` CAI Qian
2016-10-05 16:07                                                 ` Al Viro
2016-09-19  0:22 skb_splice_bits() and large chunks in pipe (was Re: xfs_file_splice_read: possible circular locking dependency detected Al Viro
2016-09-20  9:51 ` Herbert Xu

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    --to=caiqian@redhat.com \
    --cc=axboe@kernel.dk \
    --cc=david@fromorbit.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-xfs@vger.kernel.org \
    --cc=npiggin@gmail.com \
    --cc=torvalds@linux-foundation.org \
    --cc=viro@ZenIV.linux.org.uk \
    /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

Linux-Fsdevel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-fsdevel/0 linux-fsdevel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-fsdevel linux-fsdevel/ https://lore.kernel.org/linux-fsdevel \
		linux-fsdevel@vger.kernel.org
	public-inbox-index linux-fsdevel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-fsdevel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git