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. 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
