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SubjectRe: Linux 6.0-rc2
On Sun, Aug 21, 2022 at 05:54:04PM -0700, Linus Torvalds wrote:
> It's Sunday afternoon (ok,early evening, just randomly doing this a
> bit later than usual), and there's a new rc out.
>
> Nothing particularly interesting here, rc2 tends to be fairly calm
> with people taking a breather and not yet having found a lot of bugs.
>
> The most noticeable fix in here is likely the virtio reverts that
> fixed the problem people had with running tests on the google cloud
> VMs, which was the "pending issue" that we had noticed just as the
> merge window was closing. And it's noticeable - and notable - mainly
> because that problem then kept people from running some of the
> automated tests and thus finding other issues.
>
> But obviously there's a lot of other things in here too, as per the
> appended shortlog. The diffs are somewhat dominated by the amd gpu
> fixes - they missed the "drm fixes" pull during the merge window, so
> there were a bunch of fixes pending on that side. But there's some
> network driver fixes, some filesystem fixes (btrfs and a late ntfs3
> half-fixes-half-updates pull), and the usual set of architecture fixes
> and other core code (mainly networking).
>
> And some tooling fixes - a mix of selftests and perf.
>
> Go forth and test,
>
Build results:
total: 149 pass: 147 fail: 2
Failed builds:
i386:tools/perf
x86_64:tools/perf
Qemu test results:
total: 489 pass: 464 fail: 25
Failed tests:
arm:versatilepb:versatile_defconfig:aeabi:pci:scsi:mem128:net,default:versatile-pb:rootfs
arm:versatilepb:versatile_defconfig:aeabi:pci:flash64:mem128:net,default:versatile-pb:rootfs
arm:versatilepb:versatile_defconfig:aeabi:pci:mem128:net,default:versatile-pb:initrd
arm:versatileab:versatile_defconfig:mem128:net,default:versatile-ab:initrd
arm:imx25-pdk:imx_v4_v5_defconfig:nonand:usb0:mem128:net,default:imx25-pdk:rootfs
arm:imx25-pdk:imx_v4_v5_defconfig:nonand:usb1:mem128:net,default:imx25-pdk:rootfs
arm:realview-pb-a8:realview_defconfig:realview_pb:mem512:net,default:arm-realview-pba8:initrd
arm:realview-pbx-a9:realview_defconfig:realview_pb:net,default:arm-realview-pbx-a9:initrd
arm:realview-eb:realview_defconfig:realview_eb:mem512:net,default:arm-realview-eb:initrd
arm:mcimx6ul-evk:imx_v6_v7_defconfig:nodrm:usb0:mem256:net,nic:net,nic:imx6ul-14x14-evk:rootfs
arm:mcimx6ul-evk:imx_v6_v7_defconfig:nodrm:usb1:mem256:net,nic:net,nic:imx6ul-14x14-evk:rootfs
arm:mcimx7d-sabre:imx_v6_v7_defconfig:nodrm:usb1:mem256:net,nic:imx7d-sdb:rootfs
arm:vexpress-a9:multi_v7_defconfig:nolocktests:mem128:net,default:vexpress-v2p-ca9:initrd
arm:vexpress-a9:multi_v7_defconfig:nolocktests:sd:mem128:net,default:vexpress-v2p-ca9:rootfs
arm:vexpress-a9:multi_v7_defconfig:nolocktests:flash64:mem128:net,default:vexpress-v2p-ca9:rootfs
arm:vexpress-a9:multi_v7_defconfig:nolocktests:virtio-blk:mem128:net,default:vexpress-v2p-ca9:rootfs
arm:vexpress-a15:multi_v7_defconfig:nolocktests:sd:mem128:net,default:vexpress-v2p-ca15-tc1:rootfs
arm:vexpress-a15-a7:multi_v7_defconfig:nolocktests:sd:mem256:net,default:vexpress-v2p-ca15_a7:rootfs
arm:sabrelite:multi_v7_defconfig:usb0:mem256:net,default:imx6dl-sabrelite:rootfs
arm:sabrelite:multi_v7_defconfig:usb1:mem256:net,default:imx6dl-sabrelite:rootfs
arm:xilinx-zynq-a9:multi_v7_defconfig:mem128:net,default:zynq-zc702:initrd
arm:xilinx-zynq-a9:multi_v7_defconfig:usb0:mem128:net,default:zynq-zc702:rootfs
arm:xilinx-zynq-a9:multi_v7_defconfig:sd:mem128:net,default:zynq-zc702:rootfs
arm:xilinx-zynq-a9:multi_v7_defconfig:sd:mem128:net,default:zynq-zc706:rootfs
arm:xilinx-zynq-a9:multi_v7_defconfig:usb0:mem128:zynq-zed:rootfs

Details below.

Guenter

---
Build:

Building i386:tools/perf ... failed
Building x86_64:tools/perf ... failed

--------------
Error log:
In file included from tools/include/asm/../../arch/x86/include/asm/atomic.h:7,
from tools/include/asm/atomic.h:6,
from tools/include/linux/atomic.h:5,
from tools/include/linux/refcount.h:41,
from threadmap.c:4:
tools/include/asm/../../arch/x86/include/asm/atomic.h: In function ‘atomic_dec_and_test’:
tools/include/asm/../../arch/x86/include/asm/rmwcc.h:7:2: error: implicit declaration of function ‘asm_volatile_goto’

and many similar errors.

Bisect points to commit a0a12c3ed057 ("asm goto: eradicate CC_HAS_ASM_GOTO").

===========
qemu tests:

Crashes:

Various crashes in pl011_probe() due to commit f2d3b9a46e0e ("ARM: 9220/1:
amba: Remove deferred device addition"). The suggested fix is at
https://lore.kernel.org/lkml/20220811190747.797081-1-isaacmanjarres@google.com/T/
and mostly works but exposes or introduces another crash. The suggested fix for
that crash introduces yet another crash. See
https://lore.kernel.org/lkml/20220811195234.GA4018948@roeck-us.net/T/#m2192446c13d46612a00c4d499da7896d692db75c
for details.

Update: The final patch to fix this problem has been submitted. I'll need
to look it up.

--------

Various imx emulations hang in scsi_remove_host() during reboot when
booting from usb. Bisect points to the patch series at
https://lore.kernel.org/all/20220712221936.1199196-1-bvanassche@acm.org/

---------

Warnings:

riscv32/riscv64:

[ 15.272080] DEBUG_LOCKS_WARN_ON(!lockdep_hardirqs_enabled())
[ 15.272421] WARNING: CPU: 0 PID: 140 at kernel/locking/lockdep.c:5510 check_flags+0xe2/0x1c2
[ 15.272813] Modules linked in:
[ 15.273132] CPU: 0 PID: 140 Comm: S01syslogd Tainted: G N 5.19.0-14184-g69dac8e431af #1
[ 15.273428] Hardware name: riscv-virtio,qemu (DT)
[ 15.273701] epc : check_flags+0xe2/0x1c2
[ 15.273893] ra : check_flags+0xe2/0x1c2
[ 15.274040] epc : ffffffff80a8ea50 ra : ffffffff80a8ea50 sp : ff200000107cbcb0
[ 15.274228] gp : ffffffff819fec50 tp : ff6000000494d640 t0 : ffffffff81833628
[ 15.274416] t1 : 0000000000000001 t2 : 2d2d2d2d2d2d2d2d s0 : ff200000107cbcd0
[ 15.274608] s1 : ffffffff81a00130 a0 : 0000000000000030 a1 : ffffffff818925e8
[ 15.274801] a2 : 0000000000000010 a3 : fffffffffffffffe a4 : 0000000000000000
[ 15.274997] a5 : 0000000000000000 a6 : ffffffff80066d80 a7 : 0000000000000038
[ 15.275179] s2 : ffffffff81a024e0 s3 : ffffffff818935b0 s4 : ff200000107cbe28
[ 15.275365] s5 : ffffffff80e27708 s6 : 0000000200000022 s7 : ffffffffffffffff
[ 15.275558] s8 : ffffffff8249da18 s9 : 0000000000001000 s10: 0000000000000001
[ 15.275745] s11: 0000000000000001 t3 : ffffffff824740af t4 : ffffffff824740af
[ 15.275926] t5 : ffffffff824740b0 t6 : ff200000107cbaa8
[ 15.276079] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[ 15.276355] [<ffffffff80a8eba8>] lock_is_held_type+0x78/0x14a
[ 15.276565] [<ffffffff8003d648>] __might_resched+0x26/0x232
[ 15.276717] [<ffffffff8003d892>] __might_sleep+0x3e/0x66
[ 15.276861] [<ffffffff8002262c>] get_signal+0xa6/0x8f6
[ 15.277007] [<ffffffff800051da>] do_notify_resume+0x68/0x418
[ 15.277160] [<ffffffff80003af4>] ret_from_exception+0x0/0x10
[ 15.277365] irq event stamp: 2974
[ 15.277474] hardirqs last enabled at (2973): [<ffffffff80a9761c>] _raw_spin_unlock_irqrestore+0x54/0x62
[ 15.277705] hardirqs last disabled at (2974): [<ffffffff8000812c>] __trace_hardirqs_off+0xc/0x14
[ 15.277933] softirqs last enabled at (1650): [<ffffffff80a98092>] __do_softirq+0x3e2/0x51c
[ 15.278168] softirqs last disabled at (1633): [<ffffffff80016fc8>] __irq_exit_rcu+0xb4/0xdc
[ 15.278399] ---[ end trace 0000000000000000 ]---
[ 15.278699] possible reason: unannotated irqs-on.
[ 15.278838] irq event stamp: 2974
[ 15.278929] hardirqs last enabled at (2973): [<ffffffff80a9761c>] _raw_spin_unlock_irqrestore+0x54/0x62
[ 15.279141] hardirqs last disabled at (2974): [<ffffffff8000812c>] __trace_hardirqs_off+0xc/0x14
[ 15.279339] softirqs last enabled at (1650): [<ffffffff80a98092>] __do_softirq+0x3e2/0x51c
[ 15.279534] softirqs last disabled at (1633): [<ffffffff80016fc8>] __irq_exit_rcu+0xb4/0xdc

Caused or exposed by commit ba6cfef057e1 ("riscv: enable Docker requirements
in defconfig").

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