Great, thanks! Robert Am 11.03.2016 15:01 schrieb "Seth Forshee" <[email protected]>:
> On Fri, Mar 11, 2016 at 01:03:32PM -0000, Robert Doebbelin wrote: > > Thank you Seth for taking a close look at the problem and my proposed > > fix. As mentioned on the mailing list my test runs fine now with the two > > fixes. > > > > However, I prefer your fix as it prevents us from running into this > > issue again. Our test system is happily installing VMs for two hours now > > using your build. Please propose your patch. > > I'm not subscribed to fuse-devel and hadn't refreshed the mailing list > thread so I didn't realize that you had discovered that the hang was > unrelated. That's good. > > I'm happy to send the patches, I'll go ahead and send both my patch and > your iocb patch after I make sure it all applies/builds okay on 4.5. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1505948 > > Title: > Memory arena corruption with FUSE (was Memory allocation failure > crashes kernel hard, presumably related to FUSE) > > Status in linux package in Ubuntu: > Confirmed > Status in linux source package in Wily: > Confirmed > Status in linux package in Fedora: > Unknown > > Bug description: > Hello everybody, > > Linux 4.1, 4.2 or 4.3-rc leads to an immediate kernel panic in our > setup when trying to start a Qemu process on top of a fuse-based > mount. Here is an example stacktrace: > > [ 739.807817] BUG: unable to handle kernel paging request at > ffff8800a4104ea0 > [ 739.840201] IP: [<ffffffff811cc95a>] kmem_cache_alloc_trace+0x7a/0x1f0 > [ 739.870309] PGD 2fee067 PUD 2fbf4dd063 PMD 0 > [ 739.890418] Oops: 0000 [#1] SMP > [ 739.905265] Modules linked in: nbd vport_vxlan vport_gre gre > ebtable_filter ebtables openvswitch ib_iser rdma_cm iw_cm ib_cm ib_sa > ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi > ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter > xt_CT iptable_raw ip_tables xt_tcpudp ip6t_REJECT nf_reject_ipv6 xt_limit > nf_conntrack_ipv6 nf_defrag_ipv6 xt_multiport xt_conntrack nf_conntrack > ip6table_filter ip6_tables x_tables dm_crypt ipmi_ssif intel_rapl iosf_mbi > x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul > crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul > glue_helper ablk_helper cryptd kvm_intel kvm ipmi_devintf vhost_net vhost > macvtap macvlan joydev input_leds dm_multipath scsi_dh bonding sb_edac > 8021q garp hpilo mrp stp ipmi_si llc edac_core lpc_ich ioatdma 8250_fintek > ipmi_msghandler lp shpchp acpi_power_meter mac_hid parport nls_iso8859_1 > sch_fq_codel xfs libcrc32c btrfs xor raid6_pq ixgbe ses enclosure > hid_generic dca vxlan usbhid ip6_udp_tunnel tg3 udp_tunnel ptp hid pps_core > hpsa mdio wmi > [ 740.345300] CPU: 8 PID: 10550 Comm: qemu-system-x86 Not tainted > 4.2.0-040200-generic #201508301530 > [ 740.386879] Hardware name: HP ProLiant DL380 Gen9, BIOS P89 05/06/2015 > [ 740.416827] task: ffff882f8e958dc0 ti: ffff882f28c20000 task.ti: > ffff882f28c20000 > [ 740.451672] RIP: 0010:[<ffffffff811cc95a>] [<ffffffff811cc95a>] > kmem_cache_alloc_trace+0x7a/0x1f0 > [ 740.494047] RSP: 0018:ffff882f28c23c68 EFLAGS: 00010286 > [ 740.518425] RAX: 0000000000000000 RBX: 00000000000000d0 RCX: > 00000000000026b3 > [ 740.551611] RDX: 00000000000026b2 RSI: 00000000000000d0 RDI: > ffff882fbf407840 > [ 740.584846] RBP: ffff882f28c23ca8 R08: 0000000000019920 R09: > ffffe8d000200ab0 > [ 740.618287] R10: ffffffff812e8dcd R11: ffffea00bca0ac00 R12: > 00000000000000d0 > [ 740.651320] R13: ffff882fbf407840 R14: ffff8800a4104ea0 R15: > ffff882fbf407840 > [ 740.684195] FS: 00007f2642ffd700(0000) GS:ffff882fbfa00000(0000) > knlGS:0000000000000000 > [ 740.722030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 740.749469] CR2: ffff8800a4104ea0 CR3: 0000002f26f83000 CR4: > 00000000001426e0 > [ 740.783390] Stack: > [ 740.792577] ffffffff812e8dcd 0000000000000048 0000000000000002 > ffff882f908c8468 > [ 740.827003] 0000000001bef000 ffff882f928e4600 ffff882f28c23e48 > ffff882f28c23d70 > [ 740.860971] ffff882f28c23d38 ffffffff812e8dcd 0000000000000001 > ffff882f908c8300 > [ 740.894994] Call Trace: > [ 740.906211] [<ffffffff812e8dcd>] ? fuse_direct_IO+0xdd/0x280 > [ 740.932940] [<ffffffff812e8dcd>] fuse_direct_IO+0xdd/0x280 > [ 740.958866] [<ffffffff8117750e>] generic_file_direct_write+0x9e/0x150 > [ 740.989318] [<ffffffff812e96bc>] fuse_file_write_iter+0x15c/0x2e0 > [ 741.017725] [<ffffffff811e94a7>] __vfs_write+0xa7/0xf0 > [ 741.041787] [<ffffffff811e9b09>] vfs_write+0xa9/0x190 > [ 741.065307] [<ffffffff811ea9d9>] SyS_pwrite64+0x69/0xa0 > [ 741.090141] [<ffffffff81085b57>] ? SyS_rt_sigprocmask+0x67/0xb0 > [ 741.135924] [<ffffffff817a8e32>] entry_SYSCALL_64_fastpath+0x16/0x75 > [ 741.183478] Code: 4c 03 05 32 d8 e3 7e 4d 8b 30 49 8b 40 10 4d 85 f6 > 0f 84 22 01 00 00 48 85 c0 0f 84 19 01 00 00 49 63 47 20 48 8d 4a 01 4d 8b > 07 <49> 8b 1c 06 4c 89 f0 65 49 0f c7 08 0f 94 c0 84 c0 74 b9 49 63 > [ 741.306817] RIP [<ffffffff811cc95a>] > kmem_cache_alloc_trace+0x7a/0x1f0 > > The problem has also been documented by somebody else in the Fedora > bug tracker at https://bugzilla.redhat.com/show_bug.cgi?id=1254310 > > This behaviour is 100% reproducible. I have asked the fuse-devel > mailinglist for advice, but up to this point with no success: > > http://sourceforge.net/p/fuse/mailman/message/34537139/ > > We are still investigating if this issue is also happening with 4.0 > and will add the information to this bug report once we have it. Any > help on debugging will be greatly appreciated. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505948/+subscriptions > -- -- *Quobyte* GmbH Hardenbergplatz 2 - 10623 Berlin - Germany +49-30-814 591 800 - www.quobyte.com Amtsgericht Berlin-Charlottenburg, HRB 149012B management board: Dr. Felix Hupfeld, Dr. Björn Kolbeck, Dr. Jan Stender -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1505948 Title: Memory arena corruption with FUSE (was Memory allocation failure crashes kernel hard, presumably related to FUSE) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505948/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
