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Message-ID: <20241105155519.57530-1-yuntao.wang@linux.dev>
Date: Tue, 5 Nov 2024 23:55:19 +0800
From: Yuntao Wang <yuntao.wang@...ux.dev>
To: bhe@...hat.com
Cc: akpm@...ux-foundation.org,
bp@...en8.de,
corbet@....net,
dave.hansen@...ux.intel.com,
ebiederm@...ssion.com,
hpa@...or.com,
kexec@...ts.infradead.org,
linux-kernel@...r.kernel.org,
lkp@...el.com,
mingo@...hat.com,
oe-lkp@...ts.linux.dev,
oliver.sang@...el.com,
tglx@...utronix.de,
ytcoode@...il.com,
yuntao.wang@...ux.dev
Subject: Re: [linus:master] [kexec] 816d334afa: Mem-Info
On Tue, 29 Oct 2024 11:08:54 +0800, Baoquan He <bhe@...hat.com> wrote:
> Hi Yuntao,
>
> On 10/23/24 at 04:30pm, kernel test robot wrote:
> >
> >
> > Hello,
> >
> > kernel test robot noticed "Mem-Info" on:
> >
> > commit: 816d334afa85c836080b41bb6238aea845615ad9 ("kexec: modify the meaning of the end parameter in kimage_is_destination_range()")
>
> Can you check what happened with your patch?
Hi Baoquan,
Sorry for the late response, I missed this email.
This issue seems quite similar to the previous one:
https://lore.kernel.org/lkml/ZkcD9H0P8O7Me5Do@xpf.sh.intel.com/t/#u
Once again, I still could not figure out why this commit is causing this issue.
Could someone else please take a look?
Thanks in advance!
Yuntao
> Thanks
> Baoquan
>
> > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> >
> > [test failed on linus/master c2ee9f594da826bea183ed14f2cc029c719bf4da]
> > [test failed on linux-next/master 7436324ebd147598f940dde1335b7979dbccc339]
> >
> > in testcase: trinity
> > version:
> > with following parameters:
> >
> > runtime: 600s
> >
> >
> >
> > config: x86_64-randconfig-r032-20220801
> > compiler: gcc-12
> > test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
> >
> > (please refer to attached dmesg/kmsg for entire log/backtrace)
> >
> >
> > we observed the issue happen randomly but keep clean on parent
> >
> >
> > 5c28913ed04b29ef 816d334afa85c836080b41bb623
> > ---------------- ---------------------------
> > fail:runs %reproduction fail:runs
> > | | |
> > :100 41% 41:100 dmesg.Mem-Info
> >
> >
> > and from below Call Trace, seems be related to changes in 816d334afa. FYI
> >
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <oliver.sang@...el.com>
> > | Closes: https://lore.kernel.org/oe-lkp/202410231602.fecf96df-lkp@intel.com
> >
> >
> >
> > [ 183.284967][ T2438] trinity-c2: page allocation failure: order:1, mode:0x10cc0(GFP_KERNEL|__GFP_NORETRY), nodemask=(null),cpuset=/,mems_allowed=0
> > [ 183.287021][ T2438] CPU: 0 PID: 2438 Comm: trinity-c2 Not tainted 6.7.0-rc4-00178-g816d334afa85 #1
> > [ 183.288291][ T2438] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> > [ 183.289719][ T2438] Call Trace:
> > [ 183.290202][ T2438] <TASK>
> > [ 183.290556][ T2438] dump_stack_lvl (lib/dump_stack.c:107)
> > [ 183.291233][ T2438] dump_stack (lib/dump_stack.c:114)
> > [ 183.291773][ T2438] warn_alloc (mm/page_alloc.c:3391)
> > [ 183.292370][ T2438] ? zone_watermark_ok_safe (mm/page_alloc.c:3370)
> > [ 183.293136][ T2438] ? get_page_from_freelist (mm/page_alloc.c:3513)
> > [ 183.293882][ T2438] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
> > [ 183.294602][ T2438] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4423)
> > [ 183.295385][ T2438] __alloc_pages_slowpath+0x17d2/0x1b00
> > [ 183.296285][ T2438] ? __zone_watermark_ok (mm/page_alloc.c:2968)
> > [ 183.297011][ T2438] ? ftrace_likely_update (arch/x86/include/asm/smap.h:56 kernel/trace/trace_branch.c:229)
> > [ 183.297719][ T2438] ? warn_alloc (mm/page_alloc.c:4041)
> > [ 183.298306][ T2438] ? get_page_from_freelist (include/linux/mmzone.h:1651 mm/page_alloc.c:3187)
> > [ 183.299017][ T2438] ? ftrace_likely_update (arch/x86/include/asm/smap.h:56 kernel/trace/trace_branch.c:229)
> > [ 183.299639][ T2438] __alloc_pages (mm/page_alloc.c:4581)
> > [ 183.300162][ T2438] ? asm_sysvec_apic_timer_interrupt (arch/x86/include/asm/idtentry.h:645)
> > [ 183.300851][ T2438] ? __alloc_pages_slowpath+0x1b00/0x1b00
> > [ 183.301627][ T2438] ? kimage_alloc_pages (arch/x86/include/asm/bitops.h:55 (discriminator 3) include/asm-generic/bitops/instrumented-atomic.h:29 (discriminator 3) include/linux/page-flags.h:492 (discriminator 3) kernel/kexec_core.c:303 (discriminator 3))
> > [ 183.302230][ T2438] ? ftrace_likely_update (arch/x86/include/asm/smap.h:56 kernel/trace/trace_branch.c:229)
> > [ 183.302840][ T2438] kimage_alloc_pages (include/linux/gfp.h:238 include/linux/gfp.h:261 include/linux/gfp.h:274 kernel/kexec_core.c:295)
> > [ 183.303436][ T2438] kimage_alloc_control_pages (kernel/kexec_core.c:369 kernel/kexec_core.c:480)
> > [ 183.304126][ T2438] ? kimage_free_page_list (kernel/kexec_core.c:475)
> > [ 183.304774][ T2438] kimage_alloc_init (kernel/kexec.c:63)
> > [ 183.305362][ T2438] do_kexec_load (kernel/kexec.c:125)
> > [ 183.305910][ T2438] ? kimage_alloc_init (kernel/kexec.c:89)
> > [ 183.306496][ T2438] ? ftrace_likely_update (arch/x86/include/asm/smap.h:56 kernel/trace/trace_branch.c:229)
> > [ 183.307107][ T2438] __x64_sys_kexec_load (kernel/kexec.c:255 kernel/kexec.c:235 kernel/kexec.c:235)
> > [ 183.307750][ T2438] do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:82)
> > [ 183.308284][ T2438] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
> > [ 183.308968][ T2438] RIP: 0033:0x463519
> > [ 183.309465][ T2438] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db 59 00 00 c3 66 2e 0f 1f 84 00 00 00 00
> > All code
> > ========
> > 0: 00 f3 add %dh,%bl
> > 2: c3 ret
> > 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
> > a: 00 00 00
> > d: 0f 1f 40 00 nopl 0x0(%rax)
> > 11: 48 89 f8 mov %rdi,%rax
> > 14: 48 89 f7 mov %rsi,%rdi
> > 17: 48 89 d6 mov %rdx,%rsi
> > 1a: 48 89 ca mov %rcx,%rdx
> > 1d: 4d 89 c2 mov %r8,%r10
> > 20: 4d 89 c8 mov %r9,%r8
> > 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9
> > 28: 0f 05 syscall
> > 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction
> > 30: 0f 83 db 59 00 00 jae 0x5a11
> > 36: c3 ret
> > 37: 66 data16
> > 38: 2e cs
> > 39: 0f .byte 0xf
> > 3a: 1f (bad)
> > 3b: 84 00 test %al,(%rax)
> > 3d: 00 00 add %al,(%rax)
> > ...
> >
> > Code starting with the faulting instruction
> > ===========================================
> > 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax
> > 6: 0f 83 db 59 00 00 jae 0x59e7
> > c: c3 ret
> > d: 66 data16
> > e: 2e cs
> > f: 0f .byte 0xf
> > 10: 1f (bad)
> > 11: 84 00 test %al,(%rax)
> > 13: 00 00 add %al,(%rax)
> > ...
> > [ 183.312022][ T2438] RSP: 002b:00007ffe4d586468 EFLAGS: 00000246 ORIG_RAX: 00000000000000f6
> > [ 183.313222][ T2438] RAX: ffffffffffffffda RBX: 00000000000000f6 RCX: 0000000000463519
> > [ 183.314330][ T2438] RDX: 00007f3d966eb000 RSI: 0000000000000001 RDI: 00007f3d966e9000
> > [ 183.315440][ T2438] RBP: 00007f3d97011000 R08: 0000000000000051 R09: 0000000000001000
> > [ 183.316561][ T2438] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
> > [ 183.317678][ T2438] R13: 00007f3d97011058 R14: 000000000109a850 R15: 00007f3d97011000
> > [ 183.318855][ T2438] </TASK>
> > [ 183.324046][ T2438] Mem-Info:
> > [ 183.324538][ T2438] active_anon:5181 inactive_anon:9601 isolated_anon:0
> > [ 183.324538][ T2438] active_file:0 inactive_file:0 isolated_file:0
> > [ 183.324538][ T2438] unevictable:85008 dirty:0 writeback:0
> > [ 183.324538][ T2438] slab_reclaimable:24508 slab_unreclaimable:111403
> > [ 183.324538][ T2438] mapped:11081 shmem:7595 pagetables:757
> > [ 183.324538][ T2438] sec_pagetables:0 bounce:0
> > [ 183.324538][ T2438] kernel_misc_reclaimable:0
> > [ 183.324538][ T2438] free:22807 free_pcp:846 free_cma:0
> > [ 183.365634][ T2438] Node 0 active_anon:20724kB inactive_anon:38404kB active_file:0kB inactive_file:0kB unevictable:340032kB isolated(anon):0kB isolated(file):0kB mapped:44324kB dirty:0kB writeback:0kB shmem:30380kB writeback_tmp:0kB kernel_stack:3776kB pagetables:3028kB sec_pagetables:0kB all_unreclaimable? yes
> > [ 183.369581][ T2438] DMA free:15296kB boost:0kB min:16kB low:28kB high:40kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> > [ 183.373381][ T2438] lowmem_reserve[]: 0 2813 13774 13774
> > [ 183.374261][ T2438] DMA32 free:46624kB boost:0kB min:3064kB low:5944kB high:8824kB reserved_highatomic:0KB active_anon:8kB inactive_anon:2888kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129216kB managed:2958668kB mlocked:0kB bounce:0kB free_pcp:2712kB local_pcp:996kB free_cma:0kB
> > [ 183.378286][ T2438] lowmem_reserve[]: 0 0 10961 10961
> > [ 183.379256][ T2438] Normal free:42560kB boost:4096kB min:16040kB low:27264kB high:38488kB reserved_highatomic:4096KB active_anon:20716kB inactive_anon:35516kB active_file:0kB inactive_file:0kB unevictable:340032kB writepending:0kB present:13631488kB managed:11224244kB mlocked:392kB bounce:0kB free_pcp:492kB local_pcp:464kB free_cma:0kB
> > [ 183.383570][ T2438] lowmem_reserve[]: 0 0 0 0
> > [ 183.384357][ T2438] DMA: 0*4kB 0*8kB 0*16kB 0*32kB 1*64kB (U) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 1*2048kB (U) 3*4096kB (M) = 15296kB
> > [ 183.386517][ T2438] DMA32: 80*4kB (UME) 4*8kB (M) 4*16kB (ME) 6*32kB (UME) 3*64kB (UME) 4*128kB (UM) 3*256kB (UME) 5*512kB (UM) 5*1024kB (M) 2*2048kB (ME) 8*4096kB (M) = 46624kB
> > [ 183.389206][ T2438] Normal: 524*4kB (UMEH) 445*8kB (UME) 410*16kB (UME) 382*32kB (UMEH) 154*64kB (UME) 41*128kB (U) 8*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 42104kB
> > [ 183.391793][ T2438] 92505 total pagecache pages
> > [ 183.392602][ T2438] 0 pages in swap cache
> > [ 183.393232][ T2438] Free swap = 0kB
> > [ 183.393819][ T2438] Total swap = 0kB
> > [ 183.394352][ T2438] 4194174 pages RAM
> > [ 183.394916][ T2438] 0 pages HighMem/MovableOnly
> > [ 183.395645][ T2438] 644606 pages reserved
> > [ 183.396135][ T2438] 0 pages cma reserved
> >
> >
> >
> > The kernel config and materials to reproduce are available at:
> > https://download.01.org/0day-ci/archive/20241023/202410231602.fecf96df-lkp@intel.com
> >
> >
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
> >
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