Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.1 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc6-unstable/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1460402 Title: FS-Cache: Assertion failed Status in linux package in Ubuntu: Incomplete Bug description: Happens in two nodes at the same time. Node 1: [205458.631304] ------------[ cut here ]------------ [205458.633636] kernel BUG at /build/buildd/linux-3.13.0/fs/fscache/page.c:244! [205458.633636] invalid opcode: 0000 [#1] SMP [205458.633636] Modules linked in: veth xt_nat xt_tcpudp xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bufio dm_bio_prison libcrc32c cachefiles nfsv3 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt syscopyarea sysfillrect sysimgblt fb_sys_fops serio_raw isofs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd floppy psmouse [205458.633636] CPU: 3 PID: 6217 Comm: php5-fpm Not tainted 3.13.0-53-generic #89-Ubuntu [205458.633636] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015 [205458.633636] task: ffff8801e3ede000 ti: ffff880107ace000 task.ti: ffff880107ace000 [205458.633636] RIP: 0010:[<ffffffffa00b8c14>] [<ffffffffa00b8c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [205458.633636] RSP: 0018:ffff880107acfad8 EFLAGS: 00010286 [205458.633636] RAX: 000000000000000f RBX: ffff880014be1a80 RCX: 0000000000000000 [205458.633636] RDX: ffff8801efc6f020 RSI: ffff8801efc6d408 RDI: 0000000000000246 [205458.633636] RBP: ffff880107acfae0 R08: 0000000000000096 R09: 0000000000000231 [205458.633636] R10: ffffffff8185ade0 R11: ffff880107acf806 R12: ffff8800c3e469f8 [205458.633636] R13: ffff880107acfbbc R14: 00000000ffffff97 R15: ffff8801e3ff9b68 [205458.633636] FS: 00007f383346c740(0000) GS:ffff8801efc60000(0000) knlGS:0000000000000000 [205458.633636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [205458.633636] CR2: 00007f382032cf08 CR3: 00000001206ea000 CR4: 00000000001406e0 [205458.633636] Stack: [205458.633636] ffff880014be1a80 ffff880107acfb08 ffffffffa00b6eab ffff880014be1a80 [205458.633636] ffff8800c3e469f8 ffff880107acfbbc ffff880107acfb58 ffffffffa00b9753 [205458.633636] ffff8800c3e46a00 ffff8801e3ff9b00 ffff880107acfcb8 00000000ffffff97 [205458.633636] Call Trace: [205458.633636] [<ffffffffa00b6eab>] fscache_put_operation+0x5b/0x220 [fscache] [205458.633636] [<ffffffffa00b9753>] __fscache_read_or_alloc_pages+0x1b3/0x350 [fscache] [205458.633636] [<ffffffffa01645c1>] __nfs_readpages_from_fscache+0x71/0x1b0 [nfs] [205458.633636] [<ffffffffa015b7b8>] nfs_readpages+0xa8/0x190 [nfs] [205458.633636] [<ffffffff81197c53>] ? alloc_pages_current+0xa3/0x160 [205458.633636] [<ffffffff8114f757>] ? __page_cache_alloc+0x97/0xc0 [205458.633636] [<ffffffff8115ba39>] __do_page_cache_readahead+0x1b9/0x260 [205458.633636] [<ffffffff8115bf12>] ondemand_readahead+0x152/0x2a0 [205458.633636] [<ffffffff8115c091>] page_cache_sync_readahead+0x31/0x50 [205458.633636] [<ffffffff81151b65>] generic_file_aio_read+0x4c5/0x700 [205458.633636] [<ffffffffa0150949>] nfs_file_read+0x69/0xf0 [nfs] [205458.633636] [<ffffffff811bd8ba>] do_sync_read+0x5a/0x90 [205458.633636] [<ffffffff811bdf55>] vfs_read+0x95/0x160 [205458.633636] [<ffffffff811bea69>] SyS_read+0x49/0xa0 [205458.633636] [<ffffffff8173391d>] system_call_fastpath+0x1a/0x1f [205458.633636] Code: c0 e8 92 3b 66 e1 48 c7 c7 ae cc 0b a0 31 c0 e8 84 3b 66 e1 48 63 b3 90 00 00 00 31 d2 48 c7 c7 e3 cc 0b a0 31 c0 e8 6d 3b 66 e1 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 [205458.633636] RIP [<ffffffffa00b8c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [205458.633636] RSP <ffff880107acfad8> [205458.833163] ---[ end trace 30960a6ba86a197f ]--- Node 2: [360136.745210] FS-Cache: Assertion failed [360136.747121] 1 == 0 is false [360136.748704] ------------[ cut here ]------------ [360136.751217] kernel BUG at /build/buildd/linux-3.13.0/fs/fscache/page.c:244! [360136.752666] invalid opcode: 0000 [#1] SMP [360136.752666] Modules linked in: veth xt_nat xt_tcpudp xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bufio dm_bio_prison libcrc32c cachefiles nfsv3 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt syscopyarea sysfillrect sysimgblt fb_sys_fops serio_raw isofs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse floppy [360136.752666] CPU: 2 PID: 7105 Comm: php5-fpm Not tainted 3.13.0-53-generic #89-Ubuntu [360136.752666] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015 [360136.752666] task: ffff880116254800 ti: ffff88010cb8a000 task.ti: ffff88010cb8a000 [360136.752666] RIP: 0010:[<ffffffffa00b1c14>] [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [360136.752666] RSP: 0018:ffff88010cb8bad8 EFLAGS: 00010286 [360136.752666] RAX: 000000000000000f RBX: ffff88001fa9a300 RCX: 0000000000000006 [360136.752666] RDX: 0000000000000007 RSI: 000000004cae4cac RDI: 0000000000000246 [360136.752666] RBP: ffff88010cb8bae0 R08: 0000000000000096 R09: 0000000000000239 [360136.752666] R10: ffffffff8185ade0 R11: ffff88010cb8b806 R12: ffff8800d4e4ae18 [360136.752666] R13: ffff88010cb8bbbc R14: 00000000ffffff97 R15: ffff88008df750e8 [360136.752666] FS: 00007f4233932740(0000) GS:ffff8801efc40000(0000) knlGS:0000000000000000 [360136.752666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [360136.752666] CR2: 00000000040e9008 CR3: 000000010de9c000 CR4: 00000000001406e0 [360136.752666] Stack: [360136.752666] ffff88001fa9a300 ffff88010cb8bb08 ffffffffa00afeab ffff88001fa9a300 [360136.752666] ffff8800d4e4ae18 ffff88010cb8bbbc ffff88010cb8bb58 ffffffffa00b2753 [360136.752666] ffff8800d4e4ae20 ffff88008df75080 ffff88010cb8bcb8 00000000ffffff97 [360136.752666] Call Trace: [360136.752666] [<ffffffffa00afeab>] fscache_put_operation+0x5b/0x220 [fscache] [360136.752666] [<ffffffffa00b2753>] __fscache_read_or_alloc_pages+0x1b3/0x350 [fscache] [360136.752666] [<ffffffffa015d5c1>] __nfs_readpages_from_fscache+0x71/0x1b0 [nfs] [360136.752666] [<ffffffffa01547b8>] nfs_readpages+0xa8/0x190 [nfs] [360136.752666] [<ffffffff81197c53>] ? alloc_pages_current+0xa3/0x160 [360136.752666] [<ffffffff8114f757>] ? __page_cache_alloc+0x97/0xc0 [360136.752666] [<ffffffff8115ba39>] __do_page_cache_readahead+0x1b9/0x260 [360136.752666] [<ffffffff8115bf12>] ondemand_readahead+0x152/0x2a0 [360136.752666] [<ffffffff8115c091>] page_cache_sync_readahead+0x31/0x50 [360136.752666] [<ffffffff81151b65>] generic_file_aio_read+0x4c5/0x700 [360136.752666] [<ffffffffa0149949>] nfs_file_read+0x69/0xf0 [nfs] [360136.752666] [<ffffffff811bd8ba>] do_sync_read+0x5a/0x90 [360136.752666] [<ffffffff811bdf55>] vfs_read+0x95/0x160 [360136.752666] [<ffffffff811bea69>] SyS_read+0x49/0xa0 [360136.752666] [<ffffffff8173391d>] system_call_fastpath+0x1a/0x1f [360136.752666] Code: c0 e8 92 ab 66 e1 48 c7 c7 ae 5c 0b a0 31 c0 e8 84 ab 66 e1 48 63 b3 90 00 00 00 31 d2 48 c7 c7 e3 5c 0b a0 31 c0 e8 6d ab 66 e1 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 [360136.752666] RIP [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [360136.752666] RSP <ffff88010cb8bad8> [360136.935505] ---[ end trace 5e0dd6a39f65225d ]--- [361660.951453] [361660.952687] FS-Cache: Assertion failed [361660.954870] 1 == 0 is false [361660.956679] ------------[ cut here ]------------ [361660.959155] kernel BUG at /build/buildd/linux-3.13.0/fs/fscache/page.c:244! [361660.960653] invalid opcode: 0000 [#2] SMP [361660.960653] Modules linked in: veth xt_nat xt_tcpudp xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bufio dm_bio_prison libcrc32c cachefiles nfsv3 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt syscopyarea sysfillrect sysimgblt fb_sys_fops serio_raw isofs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse floppy [361660.960653] CPU: 0 PID: 7839 Comm: php5-fpm Tainted: G D 3.13.0-53-generic #89-Ubuntu [361660.960653] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015 [361660.960653] task: ffff8800094c0000 ti: ffff880007daa000 task.ti: ffff880007daa000 [361660.960653] RIP: 0010:[<ffffffffa00b1c14>] [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [361660.960653] RSP: 0018:ffff880007dabad8 EFLAGS: 00010286 [361660.960653] RAX: 000000000000000f RBX: ffff88000903be40 RCX: 0000000000000006 [361660.960653] RDX: 0000000000000007 RSI: 0000000053625360 RDI: 0000000000000246 [361660.960653] RBP: ffff880007dabae0 R08: 0000000000000096 R09: 0000000000000265 [361660.960653] R10: ffffffff8185ade0 R11: ffff880007dab806 R12: ffff8800117e3aa8 [361660.960653] R13: ffff880007dabbbc R14: 00000000ffffff97 R15: ffff8800e7b707e8 [361660.960653] FS: 00007f4233932740(0000) GS:ffff8801efc00000(0000) knlGS:0000000000000000 [361660.960653] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [361660.960653] CR2: 00007faa5c88e208 CR3: 000000001fbe0000 CR4: 00000000001406f0 [361660.960653] Stack: [361660.960653] ffff88000903be40 ffff880007dabb08 ffffffffa00afeab ffff88000903be40 [361660.960653] ffff8800117e3aa8 ffff880007dabbbc ffff880007dabb58 ffffffffa00b2753 [361660.960653] ffff8800117e3ab0 ffff8800e7b70780 ffff880007dabcb8 00000000ffffff97 [361660.960653] Call Trace: [361660.960653] [<ffffffffa00afeab>] fscache_put_operation+0x5b/0x220 [fscache] [361660.960653] [<ffffffffa00b2753>] __fscache_read_or_alloc_pages+0x1b3/0x350 [fscache] [361660.960653] [<ffffffffa015d5c1>] __nfs_readpages_from_fscache+0x71/0x1b0 [nfs] [361660.960653] [<ffffffffa01547b8>] nfs_readpages+0xa8/0x190 [nfs] [361660.960653] [<ffffffff81197c53>] ? alloc_pages_current+0xa3/0x160 [361660.960653] [<ffffffff8114f757>] ? __page_cache_alloc+0x97/0xc0 [361660.960653] [<ffffffff8115ba39>] __do_page_cache_readahead+0x1b9/0x260 [361660.960653] [<ffffffff8115bf12>] ondemand_readahead+0x152/0x2a0 [361660.960653] [<ffffffff8115c091>] page_cache_sync_readahead+0x31/0x50 [361660.960653] [<ffffffff81151b65>] generic_file_aio_read+0x4c5/0x700 [361660.960653] [<ffffffffa0149949>] nfs_file_read+0x69/0xf0 [nfs] [361660.960653] [<ffffffff811bd8ba>] do_sync_read+0x5a/0x90 [361660.960653] [<ffffffff811bdf55>] vfs_read+0x95/0x160 [361660.960653] [<ffffffff811bea69>] SyS_read+0x49/0xa0 [361660.960653] [<ffffffff8173391d>] system_call_fastpath+0x1a/0x1f [361660.960653] Code: c0 e8 92 ab 66 e1 48 c7 c7 ae 5c 0b a0 31 c0 e8 84 ab 66 e1 48 63 b3 90 00 00 00 31 d2 48 c7 c7 e3 5c 0b a0 31 c0 e8 6d ab 66 e1 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 [361660.960653] RIP [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [361660.960653] RSP <ffff880007dabad8> [361661.134212] ---[ end trace 5e0dd6a39f65225e ]--- [363766.284093] [363766.285960] FS-Cache: Assertion failed [363766.289822] 1 == 0 is false [363766.292641] ------------[ cut here ]------------ [363766.295666] kernel BUG at /build/buildd/linux-3.13.0/fs/fscache/page.c:244! [363766.296609] invalid opcode: 0000 [#3] SMP [363766.296609] Modules linked in: veth xt_nat xt_tcpudp xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bufio dm_bio_prison libcrc32c cachefiles nfsv3 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt syscopyarea sysfillrect sysimgblt fb_sys_fops serio_raw isofs crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse floppy [363766.296609] CPU: 0 PID: 8794 Comm: php5-fpm Tainted: G D 3.13.0-53-generic #89-Ubuntu [363766.296609] Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015 [363766.296609] task: ffff88003704b000 ti: ffff8801025ce000 task.ti: ffff8801025ce000 [363766.296609] RIP: 0010:[<ffffffffa00b1c14>] [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [363766.296609] RSP: 0018:ffff8801025cfad8 EFLAGS: 00010286 [363766.296609] RAX: 000000000000000f RBX: ffff880105a92780 RCX: 0000000000000000 [363766.296609] RDX: ffff8801efc0f020 RSI: ffff8801efc0d408 RDI: 0000000000000246 [363766.296609] RBP: ffff8801025cfae0 R08: 0000000000000096 R09: 0000000000000291 [363766.296609] R10: ffffffff8185ade0 R11: ffff8801025cf806 R12: ffff8800117e3aa8 [363766.296609] R13: ffff8801025cfbbc R14: 00000000ffffff97 R15: ffff8800e7b707e8 [363766.296609] FS: 00007f4233932740(0000) GS:ffff8801efc00000(0000) knlGS:0000000000000000 [363766.296609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [363766.296609] CR2: 00000000030ba160 CR3: 0000000100915000 CR4: 00000000001406f0 [363766.296609] Stack: [363766.296609] ffff880105a92780 ffff8801025cfb08 ffffffffa00afeab ffff880105a92780 [363766.296609] ffff8800117e3aa8 ffff8801025cfbbc ffff8801025cfb58 ffffffffa00b2753 [363766.296609] ffff8800117e3ab0 ffff8800e7b70780 ffff8801025cfcb8 00000000ffffff97 [363766.296609] Call Trace: [363766.296609] [<ffffffffa00afeab>] fscache_put_operation+0x5b/0x220 [fscache] [363766.296609] [<ffffffffa00b2753>] __fscache_read_or_alloc_pages+0x1b3/0x350 [fscache] [363766.296609] [<ffffffffa015d5c1>] __nfs_readpages_from_fscache+0x71/0x1b0 [nfs] [363766.296609] [<ffffffffa01547b8>] nfs_readpages+0xa8/0x190 [nfs] [363766.296609] [<ffffffff81197c53>] ? alloc_pages_current+0xa3/0x160 [363766.296609] [<ffffffff8114f757>] ? __page_cache_alloc+0x97/0xc0 [363766.296609] [<ffffffff8115ba39>] __do_page_cache_readahead+0x1b9/0x260 [363766.296609] [<ffffffff8115bf12>] ondemand_readahead+0x152/0x2a0 [363766.296609] [<ffffffff8115c091>] page_cache_sync_readahead+0x31/0x50 [363766.296609] [<ffffffff81151b65>] generic_file_aio_read+0x4c5/0x700 [363766.296609] [<ffffffffa0149949>] nfs_file_read+0x69/0xf0 [nfs] [363766.296609] [<ffffffff811bd8ba>] do_sync_read+0x5a/0x90 [363766.296609] [<ffffffff811bdf55>] vfs_read+0x95/0x160 [363766.296609] [<ffffffff811bea69>] SyS_read+0x49/0xa0 [363766.296609] [<ffffffff8173391d>] system_call_fastpath+0x1a/0x1f [363766.296609] Code: c0 e8 92 ab 66 e1 48 c7 c7 ae 5c 0b a0 31 c0 e8 84 ab 66 e1 48 63 b3 90 00 00 00 31 d2 48 c7 c7 e3 5c 0b a0 31 c0 e8 6d ab 66 e1 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 [363766.296609] RIP [<ffffffffa00b1c14>] fscache_release_retrieval_op+0x74/0x80 [fscache] [363766.296609] RSP <ffff8801025cfad8> [363766.499901] ---[ end trace 5e0dd6a39f65225f ]--- --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 May 31 09:49 seq crw-rw---- 1 root audio 116, 33 May 31 09:49 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.10 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 Ec2AMI: ami-e3e89994 Ec2AMIManifest: (unknown) Ec2AvailabilityZone: eu-west-1a Ec2InstanceType: c3.xlarge Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Xen HVM domU Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-53-generic root=UUID=efbeda5e-eb44-475f-83dc-eb9b42239a4a ro console=tty1 console=ttyS0 ProcVersionSignature: Ubuntu 3.13.0-53.89-generic 3.13.11-ckt19 RelatedPackageVersions: linux-restricted-modules-3.13.0-53-generic N/A linux-backports-modules-3.13.0-53-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory Tags: trusty ec2-images Uname: Linux 3.13.0-53-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: _MarkForUpload: True dmi.bios.date: 05/06/2015 dmi.bios.vendor: Xen dmi.bios.version: 4.2.amazon dmi.chassis.type: 1 dmi.chassis.vendor: Xen dmi.modalias: dmi:bvnXen:bvr4.2.amazon:bd05/06/2015:svnXen:pnHVMdomU:pvr4.2.amazon:cvnXen:ct1:cvr: dmi.product.name: HVM domU dmi.product.version: 4.2.amazon dmi.sys.vendor: Xen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1460402/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
