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

Started by"Andreas B. Mundt" <andi@debian.org>
First post2021-08-27 13:20 +0200
Last post2022-06-09 15:30 +0200
Articles 5 — 3 participants

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  Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20) "Andreas B. Mundt" <andi@debian.org> - 2021-08-27 13:20 +0200
    Processed: Re: Bug#993091: linux: kernel oops on Olimex  A20-OLinuXino-LIME2, Allwinner sun7i (A20) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2022-02-12 19:20 +0100
    Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20) Salvatore Bonaccorso <carnil@debian.org> - 2022-02-12 19:20 +0100
      Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20) "Andreas B. Mundt" <andi@debian.org> - 2022-02-13 10:10 +0100
    Bug#993091: marked as done (linux: kernel oops on Olimex  A20-OLinuXino-LIME2, Allwinner sun7i (A20)) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2022-06-09 15:30 +0200

#72770 — Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)

From"Andreas B. Mundt" <andi@debian.org>
Date2021-08-27 13:20 +0200
SubjectBug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)
Message-ID<CQI3T-4Oa-7@gated-at.bofh.it>
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

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#74400 — Processed: Re: Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2022-02-12 19:20 +0100
SubjectProcessed: Re: Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)
Message-ID<DQ5a2-1lVK-3@gated-at.bofh.it>
In reply to#72770
Processing control commands:

> tags -1 + moreinfo
Bug #993091 [src:linux] linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)
Added tag(s) moreinfo.

-- 
993091: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993091
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#74401

FromSalvatore Bonaccorso <carnil@debian.org>
Date2022-02-12 19:20 +0100
Message-ID<DQ5a2-1lVK-5@gated-at.bofh.it>
In reply to#72770
Control: tags -1 + moreinfo

Hi Andi,

On Fri, Aug 27, 2021 at 01:14:23PM +0200, Andreas B. Mundt wrote:
> 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

Just stumbled over this bugreport from last year, is this still a
problem with a recent kernel?

Regards,
Salvatore

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#74405

From"Andreas B. Mundt" <andi@debian.org>
Date2022-02-13 10:10 +0100
Message-ID<DQj3j-1uE0-5@gated-at.bofh.it>
In reply to#74401
Hi Salvatore,

On Sat, Feb 12, 2022 at 07:11:40PM +0100, Salvatore Bonaccorso wrote:
> > […]
> > 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:
> > 
> > […]
> >
> > 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
> 
> Just stumbled over this bugreport from last year, is this still a
> problem with a recent kernel?
> 

Hard to say:  I replaced the board by an "identical" board but with a
newer revision.  Another board (same revision as the failing one) has
a different hardware configuration: It has no eMMC flash.  Both boards
work fine since months without any issues.

I kept the board that shows the issue here on my desk to experiment,
where the lockup (after ~days) is no problem.  Just now I powered the
board again and upgraded to the latest kernel.  Let's see what
happens.  The last times (some time ago already) it still failed after
some time.

That said, I can imagine that this is a hardware issue, which has not
been triggered by the buster kernel (as I wrote in the initial report,
it worked without any issues there) but now, related to kernel
changes/optimizations or the like, it is triggered (on that specific,
individual board).

Note that unfortunately the board is not perfectly 'stable' with
regard to the hardware (#927397 #911560 #911560).       

Best regards,

  Andi

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#75535 — Bug#993091: marked as done (linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20))

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2022-06-09 15:30 +0200
SubjectBug#993091: marked as done (linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20))
Message-ID<Ewqox-3FSn-5@gated-at.bofh.it>
In reply to#72770

[Multipart message — attachments visible in raw view] — view raw

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

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