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Message-ID: <CA+G9fYuHZ9TCsGYMuxisqSFVoJ3brQx4C5Xk7=FJ+23PHbhKWw@mail.gmail.com> Date: Tue, 2 Apr 2024 01:10:11 +0530 From: Naresh Kamboju <naresh.kamboju@...aro.org> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: stable@...r.kernel.org, patches@...ts.linux.dev, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com, f.fainelli@...il.com, sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de, conor@...nel.org, allen.lkml@...il.com, broonie@...nel.org, Netdev <netdev@...r.kernel.org>, Jakub Kicinski <kuba@...nel.org>, "David S. Miller" <davem@...emloft.net>, Arnd Bergmann <arnd@...db.de>, Eric Dumazet <edumazet@...gle.com> Subject: Re: [PATCH 6.8 000/399] 6.8.3-rc1 review On Mon, 1 Apr 2024 at 21:20, Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote: > > This is the start of the stable review cycle for the 6.8.3 release. > There are 399 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 Wed, 03 Apr 2024 15:24:46 +0000. > Anything received after that time might be too late. > > The whole patch series can be found in one patch at: > https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.8.3-rc1.gz > or in the git tree and branch at: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.8.y > and the diffstat can be found below. > > thanks, > > greg k-h The following kernel BUG: unable to handle page fault for address and followed by Kernel panic - not syncing: Fatal exception in interrupt noticed on the qemu-i386 running selftests: net: pmtu.sh test case and the kernel built with kselftest merge net configs with clang. We are investigating this problem on qemu-i386. Reported-by: Linux Kernel Functional Testing <lkft@...aro.org> # selftests: net: pmtu.sh # TEST: ipv4: PMTU exceptions [ OK ] # TEST: ipv4: PMTU exceptions - nexthop objects [ OK ] # TEST: ipv6: PMTU exceptions [ OK ] <trim> # TEST: ipv4: cleanup of cached exceptions [ OK ] # TEST: ipv4: cleanup of cached exceptions - nexthop objects [ OK ] # TEST: ipv6: cleanup of cached exceptions [ OK ] # TEST: ipv6: cleanup of cached exceptions - nexthop objects [ OK ] <1>[ 577.550133] BUG: unable to handle page fault for address: 26c2e000 <1>[ 577.555420] #PF: supervisor read access in kernel mode <1>[ 577.555881] #PF: error_code(0x0000) - not-present page <6>[ 577.556265] *pde = 00000000 <4>[ 577.558166] Oops: 0000 [#1] PREEMPT SMP <4>[ 577.559142] CPU: 1 PID: 59 Comm: kworker/u4:5 Not tainted 6.8.3-rc1 #1 <4>[ 577.560387] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 <4>[ 577.561517] Workqueue: netns cleanup_net <4>[ 577.563500] EIP: percpu_counter_add_batch+0x38/0xc0 <trim> <4>[ 577.569244] Call Trace: <4>[ 577.570414] <SOFTIRQ> <4>[ 577.571182] ? __die_body+0x56/0xa0 <4>[ 577.571635] ? __die+0x6b/0x80 <4>[ 577.571877] ? page_fault_oops+0x296/0x2e0 <4>[ 577.572169] ? kernelmode_fixup_or_oops+0xa0/0xb0 <4>[ 577.572535] ? __bad_area_nosemaphore+0x43/0x180 <4>[ 577.572856] ? bad_area_nosemaphore+0xd/0x20 <4>[ 577.573186] ? do_user_addr_fault+0x314/0x400 <4>[ 577.573524] ? exc_page_fault+0x49/0xa0 <4>[ 577.573807] ? pvclock_clocksource_read_nowd+0xec/0xec <4>[ 577.574143] ? dst_release+0x60/0x60 <4>[ 577.574408] ? handle_exception+0x14b/0x14b <4>[ 577.574706] ? dst_release+0x60/0x60 <4>[ 577.574990] ? pvclock_clocksource_read_nowd+0xec/0xec <4>[ 577.575340] ? percpu_counter_add_batch+0x38/0xc0 <4>[ 577.575664] ? pvclock_clocksource_read_nowd+0xec/0xec <4>[ 577.576005] ? percpu_counter_add_batch+0x38/0xc0 <4>[ 577.576333] ? dst_release+0x60/0x60 <4>[ 577.576594] dst_destroy+0x34/0xe0 <4>[ 577.577017] dst_destroy_rcu+0xb/0x10 <4>[ 577.577298] rcu_core+0x3f5/0x920 <4>[ 577.577561] rcu_core_si+0x8/0x10 <4>[ 577.577803] __do_softirq+0xa8/0x23e <4>[ 577.578088] ? __lock_text_end+0x3/0x3 <4>[ 577.578353] do_softirq_own_stack+0x50/0x60 <4>[ 577.578744] </SOFTIRQ> <4>[ 577.578974] ? sysvec_call_function_single+0x2c/0x2c <4>[ 577.579313] irq_exit_rcu+0x3a/0x80 <4>[ 577.579574] sysvec_apic_timer_interrupt+0x1f/0x30 <4>[ 577.579893] handle_exception+0x14b/0x14b <4>[ 577.580315] EIP: rb_erase+0x1aa/0x270 <trim> <4>[ 577.581832] ? sysvec_call_function_single+0x2c/0x2c <4>[ 577.582101] ? sysvec_call_function_single+0x2c/0x2c <4>[ 577.582361] ? rb_erase+0x1aa/0x270 <4>[ 577.582631] remove_proc_entry+0xce/0x1a0 <4>[ 577.582959] tcp4_proc_exit_net+0x10/0x20 <4>[ 577.583251] cleanup_net+0x1fb/0x350 <4>[ 577.583515] process_scheduled_works+0x1e1/0x3a0 <4>[ 577.583837] worker_thread+0x294/0x3c0 <4>[ 577.584112] kthread+0x13a/0x150 <4>[ 577.584348] ? pr_cont_work+0x180/0x180 <4>[ 577.584624] ? kthread_blkcg+0x30/0x30 <4>[ 577.584892] ? kthread_blkcg+0x30/0x30 <4>[ 577.585175] ret_from_fork+0x2b/0x40 <4>[ 577.585433] ret_from_fork_asm+0x12/0x18 <4>[ 577.585734] entry_INT80_32+0x108/0x108 <4>[ 577.586133] Modules linked in: xfrm_user ipip bridge stp llc geneve vxlan act_csum act_pedit cls_flower sch_prio xt_mark nft_compat nf_tables libcrc32c sch_ingress act_mirred cls_basic sch_fq_codel vrf macvtap macvlan tap ip_tables x_tables [last unloaded: test_blackhole_dev] <4>[ 577.588292] CR2: 0000000026c2e000 <4>[ 577.589067] ---[ end trace 0000000000000000 ]--- <4>[ 577.589465] EIP: percpu_counter_add_batch+0x38/0xc0 <trim> <0>[ 577.592536] Kernel panic - not syncing: Fatal exception in interrupt <0>[ 577.598118] Kernel Offset: disabled <0>[ 577.598605] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]--- Steps to reproduce: ----- - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2eVRrC1WkGHyPnNFg2O7ZvT2Vgy/reproducer Links: - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.8.y/build/v6.8.2-400-gbffeaccf18b5/testrun/23255383/suite/log-parser-test/test/check-kernel-bug/log - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.8.y/build/v6.8.2-400-gbffeaccf18b5/testrun/23255383/suite/log-parser-test/tests/ - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2eVRrC1WkGHyPnNFg2O7ZvT2Vgy -- Linaro LKFT https://lkft.linaro.org
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