Hi, Sorry for not making it clear. 2015-04-14 16:16 GMT+08:00 Filipe David Manana <fdmanana@xxxxxxxxx>: > On Tue, Apr 14, 2015 at 8:33 AM, Robbie Ko <robbieko@xxxxxxxxxxxx> wrote: >> Hi, >> >> After applying the patch, I got WARN_ON. >> btrfs progs finished without any error message, >> but received subvolume is not the same as send subvolume. >> >> Here's the related information. >> thanks, >> robbieko >> >> uanme -a >> Linux ubuntu 4.0.0-rc4-custom #2 SMP Tue Apr 14 11:43:00 CST 2015 >> x86_64 x86_64 x86_64 GNU/Linux >> btrfs --version >> Btrfs v3.14.1 >> >> Steps to reproduce: >> >> $ mkfs.btrfs -f /dev/sdb >> $ mount /dev/sdb /mnt >> $ mkfs.btrfs -f /dev/sdc >> $ mount /dev/sdc /mnt2 >> >> $ mkdir -p /mnt/data >> $ mkdir -p /mnt/data/n1/n2 >> $ mkdir -p /mnt/data/n4 >> $ mkdir -p /mnt/data/n1/n2/p1 >> $ mkdir -p /mnt/data/t4 >> $ mkdir -p /mnt/data/p1 >> $ mkdir -p /mnt/data/p1/2 >> >> $ btrfs subvolume snapshot -r /mnt /mnt/snap1 >> >> $ mv /mnt/data/n1/n2 /mnt/data/t4 >> $ mv /mnt/data/n4 /mnt/data/t4/n2 >> $ mv /mnt/data/t4/n2/p1 /mnt/data/t4/p1 >> $ mv /mnt/data/p1 /mnt/data/t4/n2 >> >> $ btrfs subvolume snapshot -r /mnt /mnt/snap2 >> >> $ btrfs send /mnt/snap1 | btrfs receive /mnt2 >> $ btrfs send -p /mnt/snap1 /mnt/snap2 | btrfs receive /mnt2 > > So this is a new case, different from the ones you've sent before, isn't it? > > You should have all previous patches applied too, not just this one > you're replying to. Hi, I have applied all the patches fixed recently. Then WARN_ON happened with steps mentioned above. I tested it without these patches, no WARN_ON but the following error appeared instead. ERROR: rename data/t4/n2/p1 -> data/t4/n2/p1/p1 failed. Invalid argument I started to revert these patches and found that this patch causes the WARN_ON problem. I'm not sure whether it's a new case. thanks, robbieko > Also, it isn't clear, are you saying this happens only with this > particular patch applied but doesn't happen without it (and all other > recent ones)? > > thanks > > >> >> Call trace message >> >> [ 135.498533] ------------[ cut here ]------------ >> >> [ 135.498557] WARNING: CPU: 1 PID: 2346 at fs/btrfs/send.c:5934 >> btrfs_ioctl_send+0xc4c/0x11e0 [btrfs]() >> >> [ 135.498560] Modules linked in: nf_conntrack_ipv4(E) >> nf_defrag_ipv4(E) xt_conntrack(E) nf_conntrack(E) ipt_REJECT(E) >> nf_reject_ipv4(E) xt_tcpudp(E) iptable_filter(E) ip_tables(E) >> x_tables(E) bridge(E) stp(E) llc(E) snd_intel8x0(E) snd_ac97_codec(E) >> ac97_bus(E) snd_pcm(E) snd_timer(E) snd(E) iosf_mbi(E) soundcore(E) >> ppdev(E) joydev(E) lp(E) serio_raw(E) parport_pc(E) i2c_piix4(E) >> mac_hid(E) parport(E) btrfs(E) xor(E) raid6_pq(E) hid_generic(E) >> usbhid(E) hid(E) ahci(E) psmouse(E) libahci(E) e1000(E) pata_acpi(E) >> >> [ 135.498578] CPU: 1 PID: 2346 Comm: btrfs Tainted: G E >> 4.0.0-rc4-custom #3 >> >> [ 135.498580] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS >> VirtualBox 12/01/2006 >> >> [ 135.498583] ffffffffc0509016 ffff88007a233c08 ffffffff817b62f3 >> 0000000000000007 >> >> [ 135.498586] 0000000000000000 ffff88007a233c48 ffffffff8107452a >> ffffc90000567000 >> >> [ 135.498590] ffff8800799f1400 ffff8800799f1418 ffff88007b3f82d0 >> ffff880079f60000 >> >> [ 135.498593] Call Trace: >> >> [ 135.498602] [<ffffffff817b62f3>] dump_stack+0x45/0x57 >> >> [ 135.498609] [<ffffffff8107452a>] warn_slowpath_common+0x8a/0xc0 >> >> [ 135.498614] [<ffffffff8107461a>] warn_slowpath_null+0x1a/0x20 >> >> [ 135.498626] [<ffffffffc04f5c6c>] btrfs_ioctl_send+0xc4c/0x11e0 [btrfs] >> >> [ 135.498632] [<ffffffff8118020e>] ? __alloc_pages_nodemask+0x1ae/0xab0 >> >> [ 135.498638] [<ffffffff810a4775>] ? sched_clock_local+0x25/0x90 >> >> [ 135.498643] [<ffffffff8109182e>] ? alloc_pid+0x2e/0x530 >> >> [ 135.498655] [<ffffffffc04bc4f6>] btrfs_ioctl+0x286/0x27e0 [btrfs] >> >> [ 135.498660] [<ffffffff810a6368>] ? __enqueue_entity+0x78/0x80 >> >> [ 135.498665] [<ffffffff810add70>] ? enqueue_entity+0x400/0xc20 >> >> [ 135.498679] [<ffffffff8101dc3a>] ? native_sched_clock+0x2a/0x90 >> >> [ 135.498686] [<ffffffff810ae708>] ? enqueue_task_fair+0x178/0x730 >> >> [ 135.498698] [<ffffffff81047c1d>] ? native_smp_send_reschedule+0x4d/0x70 >> >> [ 135.498703] [<ffffffff8109d5f0>] ? resched_curr+0x70/0xc0 >> >> [ 135.498710] [<ffffffff8109e12a>] ? check_preempt_curr+0x5a/0xa0 >> >> [ 135.498715] [<ffffffff810a152f>] ? wake_up_new_task+0x12f/0x1b0 >> >> [ 135.498722] [<ffffffff81204010>] do_vfs_ioctl+0x2e0/0x4e0 >> >> [ 135.498728] [<ffffffff8107368c>] ? do_fork+0x13c/0x370 >> >> [ 135.498733] [<ffffffff81204291>] SyS_ioctl+0x81/0xa0 >> >> [ 135.498738] [<ffffffff81073946>] ? SyS_clone+0x16/0x20 >> >> [ 135.498839] [<ffffffff817bd80d>] ? stub_clone+0x6d/0x90 >> >> [ 135.498845] [<ffffffff817bd50d>] system_call_fastpath+0x16/0x1b >> >> [ 135.498848] ---[ end trace e1dd916182de3a9d ]--- >> >> [ 135.498851] ------------[ cut here ]------------ >> >> [ 135.498871] WARNING: CPU: 1 PID: 2346 at fs/btrfs/send.c:5951 >> btrfs_ioctl_send+0x28f/0x11e0 [btrfs]() >> >> [ 135.498894] Modules linked in: nf_conntrack_ipv4(E) >> nf_defrag_ipv4(E) xt_conntrack(E) nf_conntrack(E) ipt_REJECT(E) >> nf_reject_ipv4(E) xt_tcpudp(E) iptable_filter(E) ip_tables(E) >> x_tables(E) bridge(E) stp(E) llc(E) snd_intel8x0(E) snd_ac97_codec(E) >> ac97_bus(E) snd_pcm(E) snd_timer(E) snd(E) iosf_mbi(E) soundcore(E) >> ppdev(E) joydev(E) lp(E) serio_raw(E) parport_pc(E) i2c_piix4(E) >> mac_hid(E) parport(E) btrfs(E) xor(E) raid6_pq(E) hid_generic(E) >> usbhid(E) hid(E) ahci(E) psmouse(E) libahci(E) e1000(E) pata_acpi(E) >> >> [ 135.498900] CPU: 1 PID: 2346 Comm: btrfs Tainted: G W E >> 4.0.0-rc4-custom #3 >> >> [ 135.498903] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS >> VirtualBox 12/01/2006 >> >> [ 135.498910] ffffffffc0509016 ffff88007a233c08 ffffffff817b62f3 >> 000000004c724c72 >> >> [ 135.498918] 0000000000000000 ffff88007a233c48 ffffffff8107452a >> ffff88007a233c38 >> >> [ 135.498923] ffff8800799f1400 ffff880078d52cc0 ffff880078d52cd8 >> ffff8800799f15d8 >> >> [ 135.498927] Call Trace: >> >> [ 135.498937] [<ffffffff817b62f3>] dump_stack+0x45/0x57 >> >> [ 135.498945] [<ffffffff8107452a>] warn_slowpath_common+0x8a/0xc0 >> >> [ 135.498951] [<ffffffff8107461a>] warn_slowpath_null+0x1a/0x20 >> >> [ 135.498975] [<ffffffffc04f52af>] btrfs_ioctl_send+0x28f/0x11e0 [btrfs] >> >> [ 135.498984] [<ffffffff8118020e>] ? __alloc_pages_nodemask+0x1ae/0xab0 >> >> [ 135.498990] [<ffffffff810a4775>] ? sched_clock_local+0x25/0x90 >> >> [ 135.498996] [<ffffffff8109182e>] ? alloc_pid+0x2e/0x530 >> >> [ 135.499023] [<ffffffffc04bc4f6>] btrfs_ioctl+0x286/0x27e0 [btrfs] >> >> [ 135.499031] [<ffffffff810a6368>] ? __enqueue_entity+0x78/0x80 >> >> [ 135.499037] [<ffffffff810add70>] ? enqueue_entity+0x400/0xc20 >> >> [ 135.499046] [<ffffffff8101dc3a>] ? native_sched_clock+0x2a/0x90 >> >> [ 135.499055] [<ffffffff810ae708>] ? enqueue_task_fair+0x178/0x730 >> >> [ 135.499061] [<ffffffff81047c1d>] ? native_smp_send_reschedule+0x4d/0x70 >> >> [ 135.499069] [<ffffffff8109d5f0>] ? resched_curr+0x70/0xc0 >> >> [ 135.499078] [<ffffffff8109e12a>] ? check_preempt_curr+0x5a/0xa0 >> >> [ 135.499087] [<ffffffff810a152f>] ? wake_up_new_task+0x12f/0x1b0 >> >> [ 135.499096] [<ffffffff81204010>] do_vfs_ioctl+0x2e0/0x4e0 >> >> [ 135.499106] [<ffffffff8107368c>] ? do_fork+0x13c/0x370 >> >> [ 135.499115] [<ffffffff81204291>] SyS_ioctl+0x81/0xa0 >> >> [ 135.499121] [<ffffffff81073946>] ? SyS_clone+0x16/0x20 >> >> [ 135.499131] [<ffffffff817bd80d>] ? stub_clone+0x6d/0x90 >> >> [ 135.499140] [<ffffffff817bd50d>] system_call_fastpath+0x16/0x1b >> >> [ 135.499144] ---[ end trace e1dd916182de3a9e ]--- > > > > -- > Filipe David Manana, > > "Reasonable men adapt themselves to the world. > Unreasonable men adapt the world to themselves. > That's why all progress depends on unreasonable men." -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
