(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Fri, 17 Apr 2020 15:27:36 +0000 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=207325 > > Bug ID: 207325 > Summary: Bad swap file entry 740167b7, kernel NULL pointer > dereference and Oops after hours of building > Product: Memory Management > Version: 2.5 > Kernel Version: 5.7-rc1 > Hardware: IA-32 > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > Assignee: akpm@xxxxxxxxxxxxxxxxxxxx > Reporter: erhard_f@xxxxxxxxxxx > Regression: No > > Created attachment 288559 > --> https://bugzilla.kernel.org/attachment.cgi?id=288559&action=edit > dmesg (kernel 5.7-rc1, Shuttle XPC FS51, Pentium 4) > > [...] > Apr 17 12:10:05 hakla04 kernel: get_swap_device: Bad swap file entry 740167b7 > Apr 17 12:10:05 hakla04 kernel: BUG: kernel NULL pointer dereference, address: > 00000000 > Apr 17 12:10:05 hakla04 kernel: #PF: supervisor read access in kernel mode > Apr 17 12:10:05 hakla04 kernel: #PF: error_code(0x0000) - not-present page > Apr 17 12:10:05 hakla04 kernel: *pde = 00000000 > Apr 17 12:10:05 hakla04 kernel: Oops: 0000 [#1] SMP > Apr 17 12:10:05 hakla04 kernel: CPU: 0 PID: 12912 Comm: cc1plus Not tainted > 5.7.0-rc1-Pentium4 #1 > Apr 17 12:10:05 hakla04 kernel: Hardware name: /FS51, BIOS 6.00 PG 12/02/2003 > Apr 17 12:10:05 hakla04 kernel: EIP: do_swap_page+0x9d/0x42c > Apr 17 12:10:05 hakla04 kernel: Code: 8b 80 20 0d 00 00 83 48 24 01 8b 4b 10 89 > f2 8b 45 e8 e8 e2 36 01 00 89 45 f0 85 c0 0f 85 ed 00 00 00 8b 45 e8 e8 60 57 > 01 00 <8b> 00 0f ba e0 0c 0f 83 a6 00 00 00 8b 45 e8 e8 0b 58 01 00 48 0f > Apr 17 12:10:05 hakla04 kernel: EAX: 00000000 EBX: c2d59f2c ECX: f63c41fc EDX: > 00000002 > Apr 17 12:10:05 hakla04 kernel: ESI: cf0c8f60 EDI: c2d59f64 EBP: c2d59f18 ESP: > c2d59ef8 > Apr 17 12:10:05 hakla04 kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 > EFLAGS: 00010246 > Apr 17 12:10:05 hakla04 kernel: CR0: 80050033 CR2: 00000000 CR3: 2fbfc000 CR4: > 000006d0 > Apr 17 12:10:05 hakla04 kernel: Call Trace: > Apr 17 12:10:05 hakla04 kernel: ? kmap_atomic_prot+0x2a/0x88 > Apr 17 12:10:05 hakla04 kernel: handle_mm_fault+0x282/0x81c > Apr 17 12:10:05 hakla04 kernel: do_page_fault+0x350/0x435 > Apr 17 12:10:05 hakla04 kernel: ? vmalloc_sync_unmappings+0xa/0xa > Apr 17 12:10:05 hakla04 kernel: common_exception_read_cr2+0x12d/0x132 > Apr 17 12:10:05 hakla04 kernel: EIP: 0xb7bb7263 > Apr 17 12:10:05 hakla04 kernel: Code: 84 37 06 00 00 85 c0 75 df 89 e8 c1 e8 04 > 8d 14 00 83 c2 10 01 d2 01 d2 03 54 24 10 8d 5a f8 8b 7a 04 39 fb 0f 84 b5 00 > 00 00 <8b> 47 0c 39 78 08 0f 85 a1 05 00 00 8d 0c 2f 83 49 04 01 89 42 04 > Apr 17 12:10:05 hakla04 kernel: EAX: 00000010 EBX: b7cf87f8 ECX: 00000003 EDX: > b7cf8800 > Apr 17 12:10:05 hakla04 kernel: ESI: b7cf8000 EDI: 0d9dd7a8 EBP: 00000100 ESP: > bfd08540 > Apr 17 12:10:05 hakla04 kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b > EFLAGS: 00010286 > Apr 17 12:10:05 hakla04 kernel: ? nmi+0xb4/0x114 > Apr 17 12:10:05 hakla04 kernel: Modules linked in: auth_rpcgss nfsv4 > dns_resolver nfs lockd grace sunrpc rt2500pci eeprom_93cx6 rt2x00pci rt2x00mmio > rt2x00lib led_class mac80211 evdev firewire_ohci sr_mod firewire_core ohci_pci > cdrom crc_itu_t cfg80211 thermal fan snd_intel8x0 snd_ac97_codec ohci_hcd > ehci_pci ac97_bus ehci_hcd 8250 snd_pcm 8250_base rfkill usbcore libarc4 > serial_core 8139too snd_timer sis_agp usb_common button mii agpgart snd > i2c_sis96x soundcore zstd zram zsmalloc > Apr 17 12:10:05 hakla04 kernel: CR2: 0000000000000000 > Apr 17 12:10:05 hakla04 kernel: ---[ end trace fac9f1455600dffb ]--- > Apr 17 12:10:05 hakla04 kernel: EIP: do_swap_page+0x9d/0x42c > Apr 17 12:10:05 hakla04 kernel: Code: 8b 80 20 0d 00 00 83 48 24 01 8b 4b 10 89 > f2 8b 45 e8 e8 e2 36 01 00 89 45 f0 85 c0 0f 85 ed 00 00 00 8b 45 e8 e8 60 57 > 01 00 <8b> 00 0f ba e0 0c 0f 83 a6 00 00 00 8b 45 e8 e8 0b 58 01 00 48 0f > Apr 17 12:10:05 hakla04 kernel: EAX: 00000000 EBX: c2d59f2c ECX: f63c41fc EDX: > 00000002 > Apr 17 12:10:05 hakla04 kernel: ESI: cf0c8f60 EDI: c2d59f64 EBP: c2d59f18 ESP: > c2d59ef8 > Apr 17 12:10:05 hakla04 kernel: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 > EFLAGS: 00010246 > Apr 17 12:10:05 hakla04 kernel: CR0: 80050033 CR2: 00000000 CR3: 2fbfc000 CR4: > 000006d0 > Apr 17 12:10:05 hakla04 kernel: swap_info_get: Bad swap file entry 74016721 > Apr 17 12:10:05 hakla04 kernel: BUG: Bad page map in process cc1plus > pte:02ce423e pmd:7bd55067 > Apr 17 12:10:05 hakla04 kernel: addr:0b365000 vm_flags:00100073 > anon_vma:d8333e70 mapping:00000000 index:b365 > Apr 17 12:10:05 hakla04 kernel: file:(null) fault:0x0 mmap:0x0 readpage:0x0 > Apr 17 12:10:05 hakla04 kernel: CPU: 0 PID: 12912 Comm: cc1plus Tainted: G > D 5.7.0-rc1-Pentium4 #1 > Apr 17 12:10:05 hakla04 kernel: Hardware name: /FS51, BIOS 6.00 PG 12/02/2003 > Apr 17 12:10:05 hakla04 kernel: Call Trace: > Apr 17 12:10:05 hakla04 kernel: dump_stack+0x6c/0x94 > Apr 17 12:10:05 hakla04 kernel: print_bad_pte+0x14d/0x167 > Apr 17 12:10:05 hakla04 kernel: unmap_page_range+0x2b9/0x3cb > Apr 17 12:10:05 hakla04 kernel: unmap_single_vma+0x8a/0x94 > Apr 17 12:10:05 hakla04 kernel: unmap_vmas+0x52/0x69 > Apr 17 12:10:05 hakla04 kernel: exit_mmap+0x93/0xde > Apr 17 12:10:05 hakla04 kernel: ? do_exit+0x2ad/0x82d > Apr 17 12:10:05 hakla04 kernel: __mmput+0x39/0xc6 > Apr 17 12:10:05 hakla04 kernel: mmput+0x1e/0x21 > Apr 17 12:10:05 hakla04 kernel: do_exit+0x2fd/0x82d > Apr 17 12:10:05 hakla04 kernel: rewind_stack_do_exit+0x11/0x13 > Apr 17 12:10:05 hakla04 kernel: EIP: 0xb7bb7263 > Apr 17 12:10:05 hakla04 kernel: Code: 84 37 06 00 00 85 c0 75 df 89 e8 c1 e8 04 > 8d 14 00 83 c2 10 01 d2 01 d2 03 54 24 10 8d 5a f8 8b 7a 04 39 fb 0f 84 b5 00 > 00 00 <8b> 47 0c 39 78 08 0f 85 a1 05 00 00 8d 0c 2f 83 49 04 01 89 42 04 > Apr 17 12:10:05 hakla04 kernel: EAX: 00000010 EBX: b7cf87f8 ECX: 00000003 EDX: > b7cf8800 > Apr 17 12:10:05 hakla04 kernel: ESI: b7cf8000 EDI: 0d9dd7a8 EBP: 00000100 ESP: > bfd08540 > Apr 17 12:10:05 hakla04 kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b > EFLAGS: 00010286 > Apr 17 12:10:05 hakla04 kernel: ? nmi+0xb4/0x114 > Apr 17 12:10:05 hakla04 kernel: swap_info_get: Bad swap file entry 74016722 > Apr 17 12:10:05 hakla04 kernel: BUG: Bad page map in process cc1plus > pte:02ce443e pmd:7bd55067 > Apr 17 12:10:05 hakla04 kernel: addr:0b366000 vm_flags:00100073 > anon_vma:d8333e70 mapping:00000000 index:b366 > Apr 17 12:10:05 hakla04 kernel: file:(null) fault:0x0 mmap:0x0 readpage:0x0 > Apr 17 12:10:05 hakla04 kernel: CPU: 0 PID: 12912 Comm: cc1plus Tainted: G B > D 5.7.0-rc1-Pentium4 #1 > Apr 17 12:10:05 hakla04 kernel: Hardware name: /FS51, BIOS 6.00 PG 12/02/2003 > Apr 17 12:10:05 hakla04 kernel: Call Trace: > Apr 17 12:10:05 hakla04 kernel: dump_stack+0x6c/0x94 > Apr 17 12:10:05 hakla04 kernel: print_bad_pte+0x14d/0x167 > Apr 17 12:10:05 hakla04 kernel: unmap_page_range+0x2b9/0x3cb > Apr 17 12:10:05 hakla04 kernel: unmap_single_vma+0x8a/0x94 > Apr 17 12:10:05 hakla04 kernel: unmap_vmas+0x52/0x69 > Apr 17 12:10:05 hakla04 kernel: exit_mmap+0x93/0xde > Apr 17 12:10:05 hakla04 kernel: ? do_exit+0x2ad/0x82d > Apr 17 12:10:05 hakla04 kernel: __mmput+0x39/0xc6 > Apr 17 12:10:05 hakla04 kernel: mmput+0x1e/0x21 > Apr 17 12:10:05 hakla04 kernel: do_exit+0x2fd/0x82d > Apr 17 12:10:05 hakla04 kernel: rewind_stack_do_exit+0x11/0x13 > [...] > Please find the full dmesg (journalctl -k) attached, it is rather long. The bug > leaves the machine in a working state via ssh. Swap usage looks rather > unobtrusive. /dev/zram0 is generated via /sbin/zram-init -d0 -s2 -azstd > -Lzram_swap 256. > > # cat /proc/swaps > Filename Type Size Used Priority > /dev/zram0 partition 262140 3328 16383 > /dev/sda3 partition 16777212 0 -2 > > # inxi -b > System: Host: hakla04 Kernel: 5.7.0-rc1-Pentium4 i686 bits: 32 Console: tty > 1 > Distro: Gentoo Base System release 2.6 > Machine: Type: Desktop Mobo: Shuttle model: FS51 serial: N/A BIOS: Phoenix v: > 6.00 PG > date: 12/02/2003 > CPU: Single Core: Intel Pentium 4 type: MCP speed: 2796 MHz > Graphics: Device-1: AMD RV350 [Radeon 9550/9600/X1050 Series] driver: N/A > Display: server: X.org 1.20.7 driver: radeon tty: 104x53 > Message: Advanced graphics data unavailable in console for root. > Network: Device-1: Ralink RT2500 Wireless 802.11bg driver: rt2500pci > Device-2: Realtek RTL-8100/8101L/8139 PCI Fast Ethernet Adapter > driver: 8139too > Drives: Local Storage: total: 76.69 GiB used: 7.30 GiB (9.5%) > Info: Processes: 92 Uptime: 14h 38m Memory: 1.97 GiB used: 146.3 MiB > (7.3%) Init: systemd > Shell: bash inxi: 3.0.38 > > -- > You are receiving this mail because: > You are the assignee for the bug.
