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Description of problem: When I get several processes reading and writing gazillions of files at the same time it seems that sporadically the kernel starts generating errors to handle kernel paging request and is followed by a hang. Version-Release number of selected component (if applicable): $ uname -r 4.7.6-200.fc24.x86_64 How reproducible: I have a few scripts for testing compilers that once running for enough time will end up in a system crash but it's hard to find a step by step guide. Steps to Reproduce: 1. 2. 3. Actual results: Oct 14 13:11:58 andromeda.desktop kernel: BUG: unable to handle kernel paging request at 0000000000001040 Oct 14 13:11:58 andromeda.desktop kernel: IP: [<ffffffff921b5400>] unlock_page+0x70/0xb0 Oct 14 13:11:58 andromeda.desktop kernel: PGD ffb335067 PUD fc0675067 PMD 0 Oct 14 13:11:58 andromeda.desktop kernel: Oops: 0000 [#1] SMP Oct 14 13:11:58 andromeda.desktop kernel: Modules linked in: fuse xt_addrtype br_netfilter xt_multiport xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ccm nf_conntrack_netbios_ns n Oct 14 13:11:58 andromeda.desktop kernel: arc4 snd_hda_intel snd_usb_audio joydev snd_hda_codec ath9k ath9k_common irqbypass snd_usbmidi_lib snd_hda_core crct10dif_pclmul snd_hwdep ath9k Oct 14 13:11:58 andromeda.desktop kernel: CPU: 2 PID: 30204 Comm: mrk3-cc Tainted: P OE 4.7.6-200.fc24.x86_64 #1 Oct 14 13:11:58 andromeda.desktop kernel: Hardware name: MSI MS-7885/X99S SLI PLUS (MS-7885), BIOS 1.90 10/30/2015 Oct 14 13:11:58 andromeda.desktop kernel: task: ffff880d96e40000 ti: ffff880d79210000 task.ti: ffff880d79210000 Oct 14 13:11:58 andromeda.desktop kernel: RIP: 0010:[<ffffffff921b5400>] [<ffffffff921b5400>] unlock_page+0x70/0xb0 Oct 14 13:11:58 andromeda.desktop kernel: RSP: 0000:ffff880d79213d40 EFLAGS: 00010a87 Oct 14 13:11:58 andromeda.desktop kernel: RAX: ffffea003e675300 RBX: ffff880fc2e01e80 RCX: 0000000000000040 Oct 14 13:11:58 andromeda.desktop kernel: RDX: 0000000000000f80 RSI: 83bc68b5d7523100 RDI: ffffea003e675300 Oct 14 13:11:58 andromeda.desktop kernel: RBP: ffff880d79213d40 R08: 0000000000000000 R09: 0000000000000000 Oct 14 13:11:58 andromeda.desktop kernel: R10: ffff880fc2f33c18 R11: 00007fc3bd2a0000 R12: ffff880d79213e40 Oct 14 13:11:58 andromeda.desktop kernel: R13: ffff880fc2f33c10 R14: ffff880d9efbda00 R15: ffff880d80f52480 Oct 14 13:11:58 andromeda.desktop kernel: FS: 00007fc3cda70740(0000) GS:ffff88107f280000(0000) knlGS:0000000000000000 Oct 14 13:11:58 andromeda.desktop kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 14 13:11:58 andromeda.desktop kernel: CR2: 0000000000001040 CR3: 0000000ffb29d000 CR4: 00000000001406e0 Oct 14 13:11:58 andromeda.desktop kernel: Stack: Oct 14 13:11:58 andromeda.desktop kernel: ffff880d79213db8 ffffffff921b6626 ffff880fc2f33c18 00007fc3bd2a0000 Oct 14 13:11:58 andromeda.desktop kernel: ffffea003e675300 0000000000000196 00000000000001c0 ffffffff92067fea Oct 14 13:11:58 andromeda.desktop kernel: 0000000000000000 000000005c6c04c9 0000000000000154 ffff88100a79cf48 Oct 14 13:11:58 andromeda.desktop kernel: Call Trace: Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff921b6626>] filemap_map_pages+0x296/0x450 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff92067fea>] ? pte_alloc_one+0x3a/0x60 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff921ef64b>] handle_mm_fault+0x167b/0x2070 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff920e48c7>] ? swake_up+0x37/0x40 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff92106033>] ? __call_rcu_nocb_enqueue+0x103/0x120 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff921f4d8d>] ? __vma_link_rb+0xfd/0x110 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff9206274e>] __do_page_fault+0x1de/0x4d0 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff92062a70>] do_page_fault+0x30/0x80 Oct 14 13:11:58 andromeda.desktop kernel: [<ffffffff927ee808>] page_fault+0x28/0x30 Oct 14 13:11:58 andromeda.desktop kernel: Code: ee 37 48 89 ca 48 c1 e2 05 48 29 ca b9 40 00 00 00 48 c1 e2 06 48 03 14 f5 c0 7c d3 92 48 be eb 83 b5 80 46 86 c8 61 48 0f af f0 <2b> 8a c0 Oct 14 13:11:58 andromeda.desktop kernel: RIP [<ffffffff921b5400>] unlock_page+0x70/0xb0 Oct 14 13:11:58 andromeda.desktop kernel: RSP <ffff880d79213d40> Oct 14 13:11:58 andromeda.desktop kernel: CR2: 0000000000001040 Oct 14 13:11:58 andromeda.desktop kernel: ---[ end trace 4d620abf3704e1d7 ]--- Expected results: No crash. Additional info: I understand this information might not be enough to fix the issue. Please let me know what else I can provide or which tests you would like me to run. Also, htop showed just before crashing several processes consuming 100% of the cpu with a command of '/'. It might however be completely unrelated to the above.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 24 kernel bugs. Fedora 25 has now been rebased to 4.10.9-100.fc24. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.