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Bug#993091: marked as done (linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20))

Your message dated Thu, 9 Jun 2022 15:17:58 +0200
with message-id <20220609131758.lnawq7h7aqz6q56n@flashgordon>
and subject line not reproducible
has caused the Debian Bug report #993091,
regarding linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
993091: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993091
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: linux
Version: 5.10.46-4
Severity: normal
X-Debbugs-Cc: andi@debian.org

Dear Maintainer, hi all,

after upgrading a A20-OLinuXino-LIME2 board to bullseye, I had problems with the 
network interface which could be solved by preparing a tweaked u-boot (c.f. [1]).
However, a few hours later, a kernel oops happended and the board could not be 
reached from the LAN again:

Aug 27 01:35:13 blackbox kernel: 8<--- cut here -!-
Aug 27 01:35:13 blackbox kernel: Unable to handle kernel paging request at virtual address 800071e0
Aug 27 01:35:13 blackbox kernel: pgd = e54385ff
Aug 27 01:35:13 blackbox kernel: [800071e0] *pgd=437cf003, *pmd=00000000
Aug 27 01:35:13 blackbox kernel: Internal error: Oops: 80000206 [#1] SMP ARM
Aug 27 01:35:13 blackbox kernel: Modules linked in: nft_counter(E) ipt_REJECT(E) xt_set(E) xt_multiport(E) nft_compat(E) ip_set_hash_ip(E) nft_fib_inet(E) nft_fib_ipv4(E) nft_fib_ipv6(E) nft_fib(E) nft_reject_inet(E) nf_reject_ipv4(E) nf_reject_ipv6(E) nft_reject(E) nft_ct(E) nft_chain_nat(E) nf_nat(E) nf_conntrack(E>
Aug 27 01:35:13 blackbox kernel:  libaes(E) xts(E) dm_crypt(E) dm_mod(E) ledtrig_heartbeat(E) sd_mod(E) t10_pi(E) crc_t10dif(E) crct10dif_generic(E) crct10dif_common(E) pinctrl_axp209(E) axp20x_regulator(E) realtek(E) dwmac_sunxi(E) stmmac_platform(E) stmmac(E) pcs_xpcs(E) phylink(E) ptp(E) ahci_sunxi(E) libahci_plat>
Aug 27 01:35:13 blackbox kernel: CPU: 1 PID: 6862 Comm: fw_packets Tainted: G         C  E     5.10.0-8-armmp-lpae #1 Debian 5.10.46-4
Aug 27 01:35:13 blackbox kernel: Hardware name: Allwinner sun7i (A20) Family
Aug 27 01:35:13 blackbox kernel: PC is at 0x800071e0
Aug 27 01:35:13 blackbox kernel: LR is at symbol_string+0xc0/0x104
Aug 27 01:35:13 blackbox kernel: pc : [<800071e0>]    lr : [<c08e3810>]    psr: 600f0093
Aug 27 01:35:13 blackbox kernel: sp : d331dcb0  ip : ffffffff  fp : d331dcf4
Aug 27 01:35:13 blackbox kernel: r10: d331dd14  r9 : c17a7dc0  r8 : c11c9675
Aug 27 01:35:13 blackbox kernel: r7 : d331dd90  r6 : ffffffff  r5 : c17a7dc0  r4 : c17a79ef
Aug 27 01:35:13 blackbox kernel: r3 : 00000000  r2 : 00000000  r1 : 0000000c  r0 : c17a79fb
Aug 27 01:35:13 blackbox kernel: Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Aug 27 01:35:13 blackbox kernel: Control: 30c5387d  Table: 46bcb5c0  DAC: feff7ef6
Aug 27 01:35:13 blackbox kernel: Process fw_packets (pid: 6862, stack limit = 0xb93a5a89)
Aug 27 01:35:13 blackbox kernel: Stack: (0xd331dcb0 to 0xd331e000)
Aug 27 01:35:13 blackbox kernel: dca0:                                     ffff0a00 c11c9675 00000000 d331dd04
Aug 27 01:35:13 blackbox kernel: dcc0: d331dcf4 d331dcd0 c0483820 c04835c0 c1c14d80 c17a79ef c11c9673 00000002
Aug 27 01:35:13 blackbox kernel: dce0: d331dd90 c11c9675 d331dd4c d331dcf8 c08e79f4 c08e72b8 ffffff05 ffff0a00
Aug 27 01:35:13 blackbox kernel: dd00: c17a9500 c105ac9c 00000400 c17a79c0 d331dd2c ffffff05 ffff0a00 09458db8
Aug 27 01:35:13 blackbox kernel: dd20: c2ad496c 00000400 00000000 c11c9644 d35ce548 d35ce540 d331c000 000000c5
Aug 27 01:35:13 blackbox kernel: dd40: d331dd64 d331dd50 c08e7be0 c08e77cc c17a7990 00000000 d331dd84 d331dd68
Aug 27 01:35:13 blackbox kernel: dd60: c0e156e4 c08e7bd8 d331dd8c 09458db8 00000000 d35ce548 d331dda4 d331dd98
Aug 27 01:35:13 blackbox kernel: dd80: c0e23b84 c0e1562c c11c9644 c07cfa48 09458db8 00000000 d331de94 d331dda8
Aug 27 01:35:13 blackbox kernel: dda0: c07cfa48 c0e23b74 d331ddec d331ddb8 c0501b0c c0c03e38 0b7b90f2 00ffffff
Aug 27 01:35:13 blackbox kernel: ddc0: c0484678 00000000 00000000 c17e576c 00000000 00000000 00000000 00000000
Aug 27 01:35:13 blackbox kernel: dde0: 00000000 00000000 00000000 00000400 00000000 00000000 c18f5550 c70c5880
Aug 27 01:35:13 blackbox kernel: de00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Aug 27 01:35:13 blackbox kernel: de20: 00000000 c0000000 00000000 00000000 00000000 00000000 00000000 00000000
Aug 27 01:35:13 blackbox kernel: de40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Aug 27 01:35:13 blackbox kernel: de60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 d331dee8
Aug 27 01:35:13 blackbox kernel: de80: d35ce548 d35ce540 d331dea4 d331de98 c07d3f78 c07cf878 d331debc d331dea8
Aug 27 01:35:13 blackbox kernel: dea0: c0799650 c07d3f60 beb08418 d35ce540 d331dee4 d331dec0 c06b5128 c0799610
Aug 27 01:35:13 blackbox kernel: dec0: beb08418 b6f042e4 00000000 000000c5 c04002c4 d331c000 d331df94 d331dee8
Aug 27 01:35:13 blackbox kernel: dee0: c06b5208 c06b5100 00400100 c3bc26c0 d331c000 d331dfb0 00000000 00000000
Aug 27 01:35:13 blackbox kernel: df00: d331c000 fffffe30 d331df2c d331df18 c0e266f4 c0e25c94 ffffe000 d331df30
Aug 27 01:35:13 blackbox kernel: df20: d331dfac d331df30 c040d5e0 c0e26694 c0e23ed4 c0e23dcc 5ac3c35a c1605e50
Aug 27 01:35:13 blackbox kernel: df40: c0455894 c0e23ed0 c153b2c0 00000000 d331df84 d331df60 c04c70f4 c045580c
Aug 27 01:35:13 blackbox kernel: df60: c16078e0 d331dfb0 f0802000 c153b2cc f080200c 00000000 d331dfac 09458db8
Aug 27 01:35:13 blackbox kernel: df80: c0401664 beb08610 d331dfa4 d331df98 c06b5370 c06b51e8 00000000 d331dfa8
Aug 27 01:35:13 blackbox kernel: dfa0: c04000c0 c06b5364 beb08610 b6f042e4 00000002 beb08418 beb08418 beb08610
Aug 27 01:35:13 blackbox kernel: dfc0: beb08610 b6f042e4 00000000 000000c5 00000000 00000001 beb08b84 00000001
Aug 27 01:35:13 blackbox kernel: dfe0: 000000c5 beb0840c b6e9bdc7 b6e22c66 200f0030 00000002 00000000 00000000
Aug 27 01:35:13 blackbox kernel: Backtrace: 
Aug 27 01:35:13 blackbox kernel: [<c08e72ac>] (pointer) from [<c08e79f4>] (vsnprintf+0x234/0x40c)
Aug 27 01:35:13 blackbox kernel:  r8:c11c9675 r7:d331dd90 r6:00000002 r5:c11c9673 r4:c17a79ef
Aug 27 01:35:13 blackbox kernel: [<c08e77c0>] (vsnprintf) from [<c08e7be0>] (vscnprintf+0x14/0x2c)
Aug 27 01:35:13 blackbox kernel:  r10:000000c5 r9:d331c000 r8:d35ce540 r7:d35ce548 r6:c11c9644 r5:00000000
Aug 27 01:35:13 blackbox kernel:  r4:00000400
Aug 27 01:35:13 blackbox kernel: [<c08e7bcc>] (vscnprintf) from [<c0e156e4>] (panic+0xc8/0x340)
Aug 27 01:35:13 blackbox kernel:  r5:00000000 r4:c17a7990
Aug 27 01:35:13 blackbox kernel: [<c0e1561c>] (panic) from [<c0e23b84>] (printk_nmi_enter+0x0/0x34)
Aug 27 01:35:13 blackbox kernel:  r3:00000000 r2:09458db8 r1:c07cfa48 r0:c11c9644
Aug 27 01:35:13 blackbox kernel:  r7:d35ce548
Aug 27 01:35:13 blackbox kernel: [<c0e23b68>] (__stack_chk_fail) from [<c07cfa48>] (tomoyo_path_perm+0x1dc/0x1e0)
Aug 27 01:35:13 blackbox kernel: [<c07cf86c>] (tomoyo_path_perm) from [<c07d3f78>] (tomoyo_inode_getattr+0x24/0x28)
Aug 27 01:35:13 blackbox kernel:  r8:d35ce540 r7:d35ce548 r6:d331dee8 r5:00000000 r4:00000000
Aug 27 01:35:13 blackbox kernel: [<c07d3f54>] (tomoyo_inode_getattr) from [<c0799650>] (security_inode_getattr+0x4c/0x68)
Aug 27 01:35:13 blackbox kernel: [<c0799604>] (security_inode_getattr) from [<c06b5128>] (vfs_fstat+0x34/0x7c)
Aug 27 01:35:13 blackbox kernel:  r5:d35ce540 r4:beb08418
Aug 27 01:35:13 blackbox kernel: [<c06b50f4>] (vfs_fstat) from [<c06b5208>] (__do_sys_fstat64+0x2c/0x6c)
Aug 27 01:35:13 blackbox kernel:  r9:d331c000 r8:c04002c4 r7:000000c5 r6:00000000 r5:b6f042e4 r4:beb08418
Aug 27 01:35:13 blackbox kernel: [<c06b51dc>] (__do_sys_fstat64) from [<c06b5370>] (sys_fstat64+0x18/0x1c)
Aug 27 01:35:13 blackbox kernel:  r4:beb08610
Aug 27 01:35:13 blackbox kernel: [<c06b5358>] (sys_fstat64) from [<c04000c0>] (ret_fast_syscall+0x0/0x4c)
Aug 27 01:35:13 blackbox kernel: Exception stack(0xd331dfa8 to 0xd331dff0)
Aug 27 01:35:13 blackbox kernel: dfa0:                   beb08610 b6f042e4 00000002 beb08418 beb08418 beb08610
Aug 27 01:35:13 blackbox kernel: dfc0: beb08610 b6f042e4 00000000 000000c5 00000000 00000001 beb08b84 00000001
Aug 27 01:35:13 blackbox kernel: dfe0: 000000c5 beb0840c b6e9bdc7 b6e22c66
Aug 27 01:35:13 blackbox kernel: Code: bad PC value
Aug 27 01:35:13 blackbox kernel: ---[ end trace 6e13e1a363db19b0 ]---
 
I downgraded to the buster kernel for now which was working reliably for months 
without issues on the same board. 

Many thanks and best regards,

  Andi


[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927397#62


-- System Information:
Debian Release: 11.0
  APT prefers stable-security
  APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: armhf (armv7l)

Kernel: Linux 4.19.0-17-armmp-lpae (SMP w/2 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

--- End Message ---
--- Begin Message --- 
Hi,

I am closing this bug report because it is not reproducible.
The particular board itself does not work reliable, just hangs
completely after some time (usually some days).  However, there is
nothing in the logs after reboot.  The only backtrace I could find is
attached below for the record, but is not related to a lockup.  Other
identical boards work fine.

Best regards,

  Andi



---8<----
May 08 14:30:09 blackboxg2 kernel: BUG: Bad page map in process users  pte:42000004c4a2fdf pmd:7fb1d003
May 08 14:30:09 blackboxg2 kernel: page:c58c331c refcount:0 mapcount:-1 mapping:00000000 index:0x0 pfn:0x4c4a2
May 08 14:30:09 blackboxg2 kernel: flags: 0x2(referenced) CMA
May 08 14:30:09 blackboxg2 kernel: raw: 00000002 ef8836cc ef8836cc 00000000 00000000 00000000 fffffffe 00000000
May 08 14:30:09 blackboxg2 kernel: raw: 00000000
May 08 14:30:09 blackboxg2 kernel: page dumped because: bad pte
May 08 14:30:09 blackboxg2 kernel: addr:004ae000 vm_flags:00000875 anon_vma:00000000 mapping:c92434f8 index:5e
May 08 14:30:09 blackboxg2 kernel: file:perl fault:ext4_filemap_fault [ext4] mmap:ext4_file_mmap [ext4] readpage:ext4_readpage [ext4]
May 08 14:30:09 blackboxg2 kernel: CPU: 0 PID: 22713 Comm: users Tainted: G         C  E     5.10.0-11-armmp-lpae #1 Debian 5.10.92-1
May 08 14:30:09 blackboxg2 kernel: Hardware name: Allwinner sun7i (A20) Family
May 08 14:30:09 blackboxg2 kernel: Backtrace: 
May 08 14:30:09 blackboxg2 kernel: [<c0e1bb90>] (dump_backtrace) from [<c0e1bf04>] (show_stack+0x20/0x24)
May 08 14:30:09 blackboxg2 kernel:  r7:004ae000 r6:60010113 r5:00000000 r4:c16d06ac
May 08 14:30:09 blackboxg2 kernel: [<c0e1bee4>] (show_stack) from [<c0e212ec>] (dump_stack+0xc8/0xdc)
May 08 14:30:09 blackboxg2 kernel: [<c0e21224>] (dump_stack) from [<c063d8c4>] (print_bad_pte+0x174/0x1f0)
May 08 14:30:09 blackboxg2 kernel:  r7:004ae000 r6:c40be888 r5:bf36d6b4 r4:c4158000
May 08 14:30:09 blackboxg2 kernel: [<c063d750>] (print_bad_pte) from [<c063f794>] (unmap_page_range+0x6ac/0x9e8)
May 08 14:30:09 blackboxg2 kernel:  r8:004ae000 r7:04200000 r6:ef8836c8 r5:ffefe578 r4:004af000
May 08 14:30:09 blackboxg2 kernel: [<c063f0e8>] (unmap_page_range) from [<c063fb6c>] (unmap_single_vma+0x9c/0xec)
May 08 14:30:09 blackboxg2 kernel:  r10:c37aff58 r9:00000000 r8:00000000 r7:00450000 r6:c37afe1c r5:006f0000
May 08 14:30:09 blackboxg2 kernel:  r4:c40be888
May 08 14:30:09 blackboxg2 kernel: [<c063fad0>] (unmap_single_vma) from [<c063ff78>] (unmap_vmas+0x94/0x12c)
May 08 14:30:09 blackboxg2 kernel:  r7:c37afe1c r6:00000000 r5:ffffffff r4:c40be888
May 08 14:30:09 blackboxg2 kernel: [<c063fee4>] (unmap_vmas) from [<c064b4a8>] (exit_mmap+0xf0/0x1a4)
May 08 14:30:09 blackboxg2 kernel:  r8:c2867c44 r7:00000000 r6:c37ae000 r5:00000000 r4:c40be888
May 08 14:30:09 blackboxg2 kernel: [<c064b3b8>] (exit_mmap) from [<c044a144>] (mmput+0x78/0x160)
May 08 14:30:09 blackboxg2 kernel:  r5:c426be00 r4:c2867c00
May 08 14:30:09 blackboxg2 kernel: [<c044a0cc>] (mmput) from [<c0453e08>] (do_exit+0x38c/0xae0)
May 08 14:30:09 blackboxg2 kernel:  r5:c426be00 r4:c2867c00
May 08 14:30:09 blackboxg2 kernel: [<c0453a7c>] (do_exit) from [<c04545f8>] (do_group_exit+0x50/0xcc)
May 08 14:30:09 blackboxg2 kernel:  r7:400004d8
May 08 14:30:09 blackboxg2 kernel: [<c04545a8>] (do_group_exit) from [<c0462eb4>] (get_signal+0x18c/0xa28)
May 08 14:30:09 blackboxg2 kernel:  r7:400004d8 r6:c1d11a40 r5:c37ae000 r4:0000000a
May 08 14:30:09 blackboxg2 kernel: [<c0462d28>] (get_signal) from [<c040d6bc>] (do_work_pending+0x138/0x55c)
May 08 14:30:09 blackboxg2 kernel:  r10:5ac3c35a r9:fffffe30 r8:00000000 r7:c37aff44 r6:c37affb0 r5:c37aff30
May 08 14:30:09 blackboxg2 kernel:  r4:ffffe000
May 08 14:30:09 blackboxg2 kernel: [<c040d584>] (do_work_pending) from [<c0400124>] (slow_work_pending+0xc/0x20)
May 08 14:30:09 blackboxg2 kernel: Exception stack(0xc37affb0 to 0xc37afff8)
May 08 14:30:09 blackboxg2 kernel: ffa0:                                     00000081 01b07628 00000000 01b344cc
May 08 14:30:09 blackboxg2 kernel: ffc0: 01b0fd20 01b0fac0 00000081 00000001 00000019 00583a18 01b0fd10 00584db0
May 08 14:30:09 blackboxg2 kernel: ffe0: 01b325aa bec1cd30 0047d351 004b4dee 60010030 ffffffff
May 08 14:30:09 blackboxg2 kernel:  r10:01b0fd10 r9:c37ae000 r8:00000000 r7:30c5387d r6:ffffffff r5:60010030
May 08 14:30:09 blackboxg2 kernel:  r4:004b4dee
May 08 14:30:09 blackboxg2 kernel: Disabling lock debugging due to kernel taint
---8<----

--- End Message ---
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