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SubjectRe: [PATCH 5.10 000/131] 5.10.131-rc2 review
On Wed, Jul 13, 2022 at 03:10:15PM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.10.131 release.
> There are 131 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Fri, 15 Jul 2022 09:47:55 +0000.
> Anything received after that time might be too late.
>

Build results:
total: 163 pass: 162 fail: 1
Failed builds:
um:defconfig
Qemu test results:
total: 477 pass: 469 fail: 8
Failed tests:
x86_64:q35:SandyBridge:defconfig:smp4:net,ne2k_pci:efi32:mem1G:usb:hd
x86_64:q35:Conroe:defconfig:smp4:net,tulip:efi32:mem256:scsi[DC395]:hd
x86_64:q35:Skylake-Server:defconfig:smp4:net,e1000-82544gc:efi32:mem2G:scsi[53C895A]:hd
x86_64:q35:Opteron_G5:defconfig:smp4:net,i82559c:efi32:mem256:scsi[MEGASAS2]:hd
x86_64:pc:Opteron_G2:defconfig:smp:net,usb:efi32:mem2G:scsi[virtio-pci]:hd
x86_64:q35:Nehalem:defconfig:smp2:net,i82558a:efi32:mem1G:virtio:hd
x86_64:q35:Skylake-Client-IBRS:defconfig:preempt:smp2:net,i82558b:efi32:mem1G:sdhci:mmc:hd
x86_64:q35:Haswell-noTSX-IBRS:defconfig:nosmp:net,pcnet:efi32:mem2G:ata:hd

Build error:

/opt/kernel/gcc-11.3.0-2.38-nolibc/x86_64-linux/bin/../lib/gcc/x86_64-linux/11.3.0/../../../../x86_64-linux/bin/ld: arch/x86/um/../kernel/module.o: in function `module_finalize':
arch/x86/um/../kernel/module.c:283: undefined reference to `apply_returns'

Crash:

[ 0.709966] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[ 0.709966] BUG: unable to handle page fault for address: 0000000021803b80
[ 0.709966] #PF: supervisor instruction fetch in kernel mode
[ 0.709966] #PF: error_code(0x0011) - permissions violation
[ 0.709966] PGD 175a063 P4D 175a063 PUD 175b063 PMD 1766063 PTE 8000000021803063
[ 0.709966] Oops: 0011 [#1] SMP PTI
[ 0.709966] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.131-rc2+ #1
[ 0.709966] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[ 0.709966] RIP: 0010:0x21803b80
[ 0.709966] Code: Unable to access opcode bytes at RIP 0x21803b56.
[ 0.709966] RSP: 0018:ffffffffb9403e80 EFLAGS: 00000046
[ 0.709966] RAX: 0000000000000000 RBX: 0000000001798000 RCX: 00000000df24be60
[ 0.709966] RDX: 000000003feab058 RSI: 0000000000000600 RDI: 000000003fe7e038
[ 0.709966] RBP: 0000000000000600 R08: 0000000001798000 R09: 00000000229ed067
[ 0.709966] R10: 0000000000000000 R11: 00000000229ed067 R12: 0000000000000030
[ 0.709966] R13: 0000000000000001 R14: ffff9aca41790000 R15: 0000000000000282
[ 0.709966] FS: 0000000000000000(0000) GS:ffff9aca7f800000(0000) knlGS:0000000000000000
[ 0.709966] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050033
[ 0.709966] CR2: 0000000021803b80 CR3: 0000000001758000 CR4: 00000000000406b0
[ 0.709966] Call Trace:
[ 0.709966] ? efi_set_virtual_address_map+0x87/0x160
[ 0.709966] ? efi_enter_virtual_mode+0x39a/0x3f5
[ 0.709966] ? start_kernel+0x4aa/0x544
[ 0.709966] ? secondary_startup_64_no_verify+0xc2/0xcb
[ 0.709966] Modules linked in:
[ 0.709966] CR2: 0000000021803b80
[ 0.709966] ---[ end trace 1b5f45b6ffd42130 ]---
[ 0.709966] RIP: 0010:0x21803b80
[ 0.709966] Code: Unable to access opcode bytes at RIP 0x21803b56.
[ 0.709966] RSP: 0018:ffffffffb9403e80 EFLAGS: 00000046
[ 0.709966] RAX: 0000000000000000 RBX: 0000000001798000 RCX: 00000000df24be60
[ 0.709966] RDX: 000000003feab058 RSI: 0000000000000600 RDI: 000000003fe7e038
[ 0.709966] RBP: 0000000000000600 R08: 0000000001798000 R09: 00000000229ed067
[ 0.709966] R10: 0000000000000000 R11: 00000000229ed067 R12: 0000000000000030
[ 0.709966] R13: 0000000000000001 R14: ffff9aca41790000 R15: 0000000000000282
[ 0.709966] FS: 0000000000000000(0000) GS:ffff9aca7f800000(0000) knlGS:0000000000000000
[ 0.709966] CS: 0010 DS: 0018 ES: 0018 CR0: 0000000080050033
[ 0.709966] CR2: 0000000021803b80 CR3: 0000000001758000 CR4: 00000000000406b0
[ 0.709966] Kernel panic - not syncing: Attempted to kill the idle task!

This is the same for all stable release candidates, and is also seen
in the mainline kernel.

Guenter

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