[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Just had the problem occur again, this time dmcrypt wasn't in use on the volume with the hosted share. dmcrypt is in use on the system though? Machine is hung badly enough that my serial console isn't functional so I can't grab any additional debug info from this instance. Looks like this may be #474089 instead? -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
I've run up against this twice now. Linux forgery 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010 x86_64 GNU/Linux The box is running smbd with the only share being on a dmcrypted partition. I have a dozen Windows systems running everything from Win2k to 2k3 pushing nightly NTBackup dumps to the box. These dumps generate 9GB to 250GB files that are streamed to the box, and then read back by the host windows system to verify the dump. This works cleanly for about a week, when it fails one or more smbd processes will be pegging the cpu, along with a flush process. Any attempts to kill those processes hangs the shell, as does trying to do anything with the file system in question. Trying to reboot or shutdown -h also just hangs the current shell. Jun 29 22:56:20 forgery in.rshd: Connection from bac...@xerox.gwi for backup Jun 29 23:26:21 forgery in.rshd: Connection from bac...@xerox.gwi for backup Jun 29 23:56:22 forgery in.rshd: Connection from bac...@xerox.gwi for backup Jun 30 00:26:23 forgery in.rshd: Connection from bac...@xerox.gwi for backup Jun 30 00:50:30 forgery kernel: [443134.639157] CPU 4 Jun 30 00:50:30 forgery kernel: [443134.641505] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit fo nt bitblit softcursor ahci vga16fb tg3 vgastate cciss Jun 30 00:50:30 forgery kernel: [443134.663020] Pid: 11710, comm: smbd Not tainted 2.6.32-22-serve r #36-Ubuntu ProLiant DL120 G6 Jun 30 00:50:30 forgery kernel: [443134.672521] RIP: 0010:[811dc694] [811dc694 ] T.1113+0x1e4/0x1f0 Jun 30 00:50:30 forgery kernel: [443134.681167] RSP: :88009fd77908 EFLAGS: 00010297 Jun 30 00:50:30 forgery kernel: [443134.687180] RAX: 0035 RBX: 8800466bc920 RCX: 0 154 Jun 30 00:50:30 forgery kernel: [443134.695229] RDX: 0036 RSI: 0035 RDI: 0 153 Jun 30 00:50:30 forgery kernel: [443134.703278] RBP: 88009fd77958 R08: R09: 0 000 Jun 30 00:50:30 forgery kernel: [443134.711326] R10: 10f0eda2 R11: R12: f fff8800466bc880 Jun 30 00:50:30 forgery kernel: [443134.719374] R13: 0035 R14: 012038b4 R15: f fff8800466bcbe8 Jun 30 00:50:30 forgery kernel: [443134.727425] FS: 7f3d87fd2720() GS:88000570(00 00) knlGS: Jun 30 00:50:30 forgery kernel: [443134.736539] CS: 0010 DS: ES: CR0: 8005003b Jun 30 00:50:30 forgery kernel: [443134.743029] CR2: 7f3d87fe5000 CR3: 3788f000 CR4: 0 6e0 Jun 30 00:50:30 forgery kernel: [443134.751076] DR0: DR1: DR2: 0 000 Jun 30 00:50:30 forgery kernel: [443134.759123] DR3: DR6: 0ff0 DR7: 0 400 Jun 30 00:50:30 forgery kernel: [443134.767171] Process smbd (pid: 11710, threadinfo 88009fd76 000, task 880138582de0) Jun 30 00:50:30 forgery kernel: [443134.778715] 8800 880139e7c400 000 0 012038b4 Jun 30 00:50:30 forgery kernel: [443134.786898] 0 0041 880070cac380 8800466bc920 Jun 30 00:50:30 forgery kernel: [443134.795588] 0 012038b4 88009fd7 7988 811decd0 Jun 30 00:50:30 forgery kernel: [443134.807311] [811decd0] ext4_da_get_block_prep+0xc0/ 0x100 Jun 30 00:50:30 forgery kernel: [443134.814395] [8116f113] __block_prepare_write+0x1e3/ 0x570 Jun 30 00:50:30 forgery kernel: [443134.821475] [811dec10] ? ext4_da_get_block_prep+0x0 /0x100 Jun 30 00:50:30 forgery kernel: [443134.828653] [8116f634] block_write_begin+0x64/0x100 Jun 30 00:50:30 forgery kernel: [443134.835252] [811e1485] ext4_da_write_begin+0x135/0x 270 Jun 30 00:50:30 forgery kernel: [443134.842140] [811dec10] ? ext4_da_get_block_prep+0x0 /0x100 Jun 30 00:50:30 forgery kernel: [443134.849315] [8113ba38] ? mem_cgroup_get_reclaim_sta t_from_page+0x18/0x70 Jun 30 00:50:30 forgery kernel: [443134.857948] [810f2bb2] generic_perform_write+0xc2/0 x1d0 Jun 30 00:50:30 forgery kernel: [443134.864938] [810f3d43] generic_file_buffered_write+ 0x73/0xd0 Jun 30 00:50:30 forgery kernel: [443134.872412] [810f5330] __generic_file_aio_write+0x2 40/0x470 Jun 30 00:50:30 forgery kernel: [443134.879790] [81460d99] ? sock_aio_read+0x159/0x160 Jun 30 00:50:30 forgery kernel: [443134.886290] [81460af0] ? sock_aio_write+0x0/0x150 Jun 30 00:50:30 forgery kernel: [443134.892696] [810f55cf] generic_file_aio_write+0x6f/ 0xe0 Jun 30 00:50:30 forgery kernel: [443134.899681] [811d70b9] ext4_file_write+0x39/0xb0 Jun 30 00:50:30 forgery kernel: [443134.905981] [8114311a] do_sync_write+0xfa/0x140 Jun 30 00:50:30 forgery kernel: [443134.912194] [81084fa0] ?
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Subscribing Dustin for reproduction/advice on the encrypted directory part of things... Do you see any reason why libsmbclient-powered transfers of large files would fail on encrypted home directories ? -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Those should work, Thierry (under the rest of the normal assumptions ... file size after padding isn't bigger than the disk, file name after padding isn't 256 characters, etc. -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Confirmed here with 30GB postgres backup from XP to Ubuntu 9.10 with encrypted home directory. Exact behaviour as described above (smb 100%, etc...) -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
That would point to an issue in libsmbclient, which is also used by gvfsd-smb to access shares. -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
So, today I had some time to test with the new Ubuntu Lucid Lynx Beta 1. Result: The problem is still persistent with the same effect. But today I also tested the copy process from another Ubuntu 9.10 to the 10.4 system. It behaves slightly different: 1) Copy process starts immediately 2) On the 10.4 samba system, a process called gvfsd-smb rises the CPU to 100% (on a core 2 duo @ 3,2GHz). smbd stays at 14% 3) The copy process works fine, but after I cancelled it, gvfsd-smb stays at 100%. But instead when copying from a windows machine (s...@100%), I could kill gvfsd-smb easily. -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue that you reported is one that should be reproducible with the live environment of the Desktop CD of the development release - Lucid Lynx. It would help us greatly if you could test with it so we can work on getting it fixed in the next release of Ubuntu. You can find out more about the development release at http://www.ubuntu.com/testing/ . Thanks again and we appreciate your help. ** Changed in: samba (Ubuntu) Status: Confirmed = Triaged -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
** Changed in: samba (Ubuntu) Status: Incomplete = Confirmed -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
Which process exactly ends up consuming 100% CPU ? smbd ? nmbd ? or something else ? When it fails at 3500 Mb, does letting it run for 30 minutes more result in success or failure ? -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
its smbd which consumes 100% CPU. I can't run it for another 30Minutes as the the client immediately receives an error messagen saying permission denied and at the same time the samba's server harddisk stops working. The 100% smbd process then runs forever. -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
You write that the Samba daemon crashes in your title, what do you mean by that ? One of the nmdd/smbd process segfaults ? Anything in the samba logs (/var/log/samba ?). If it's just that the file transfer appears to freeze and CPU use rises to 100%, then it's not really a crash. In the latter case, I wouldn't be surprised if load was up 100% when encrypting a 9Gb file and took what would appear forever. You mention copying smaller files with success. Could you please gradually try to increase file size and see what happens ? ** Changed in: samba (Ubuntu) Importance: Undecided = Medium ** Changed in: samba (Ubuntu) Status: New = Incomplete -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
I am sorry for the misleading term crashes in the titel, but I didn't find any better expression while writing the bug report. samba does not crash/segfault, rather it raises the CPU load to 100%. Don't know how to call this. Today I tested several file sizes and stopped at about 3500MB. It seems that there is no static border as a file with this size works in some case and it several others, it does not work and causes the above described problem. If a file is below this threshold, the probability is very high that the transmission will work. I also raised the log level in samba to see what happens within samba and found the following: [2009/11/12 21:00:24, 0] lib/util_sock.c:730(write_data) [2009/11/12 21:00:24, 0] lib/util_sock.c:1468(get_peer_addr_internal) getpeername failed. Error was Transport endpoint is not connected write_data: write failure in writing to client 0.0.0.0. Error Connection reset by peer [2009/11/12 21:00:24, 0] smbd/process.c:62(srv_send_smb) Error writing 62 bytes to client. -1. (Transport endpoint is not connected) [2009/11/12 21:00:24, 0] lib/util_sock.c:730(write_data) [2009/11/12 21:00:24, 0] lib/util_sock.c:1468(get_peer_addr_internal) getpeername failed. Error was Transport endpoint is not connected write_data: write failure in writing to client 0.0.0.0. Error Broken pipe [2009/11/12 21:00:24, 0] smbd/process.c:62(srv_send_smb) Error writing 104 bytes to client. -1. (Transport endpoint is not connected) [2009/11/12 21:00:24, 0] lib/util_sock.c:1468(get_peer_addr_internal) getpeername failed. Error was Transport endpoint is not connected [2009/11/12 21:00:24, 0] lib/util_sock.c:730(write_data) [2009/11/12 21:00:24, 0] lib/util_sock.c:1468(get_peer_addr_internal) getpeername failed. Error was Transport endpoint is not connected write_data: write failure in writing to client 0.0.0.0. Error Broken pipe [2009/11/12 21:00:24, 0] smbd/process.c:62(srv_send_smb) Error writing 60 bytes to client. -1. (Transport endpoint is not connected) [2009/11/12 21:00:24, 0] lib/util_sock.c:730(write_data) [2009/11/12 21:00:24, 0] lib/util_sock.c:1468(get_peer_addr_internal) getpeername failed. Error was Transport endpoint is not connected write_data: write failure in writing to client 0.0.0.0. Error Broken pipe [2009/11/12 21:00:24, 0] smbd/process.c:62(srv_send_smb) Error writing 53 bytes to client. -1. (Transport endpoint is not connected) [2009/11/12 21:00:24, 2] smbd/close.c:612(close_normal_file) christoph closed file large.001 (numopen=0) NT_STATUS_OK -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 480849] Re: Samba daemon crashes when transfering large files to share in encrypted home dir
** Attachment added: smb.conf http://launchpadlibrarian.net/35544771/smb.conf ** Attachment added: Dependencies.txt http://launchpadlibrarian.net/35544772/Dependencies.txt ** Attachment added: ProcMaps.txt http://launchpadlibrarian.net/35544773/ProcMaps.txt ** Attachment added: ProcStatus.txt http://launchpadlibrarian.net/35544774/ProcStatus.txt ** Attachment added: XsessionErrors.txt http://launchpadlibrarian.net/35544775/XsessionErrors.txt -- Samba daemon crashes when transfering large files to share in encrypted home dir https://bugs.launchpad.net/bugs/480849 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
