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From: Stephen Rothwell <sfr@canb•auug.org.au>
To: Andrew Morton <akpm@linux-foundation•org>
Cc: Zhiguo Jiang <justinjiang@vivo•com>,
	Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
	Linux Next Mailing List <linux-next@vger•kernel.org>
Subject: linux-next: boot warning after merge of the mm tree
Date: Mon, 26 Aug 2024 19:46:48 +1000	[thread overview]
Message-ID: <20240826194648.407fdf58@canb.auug.org.au> (raw)

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Hi all,

After merging the mm tree, today's linux-next boot test (powerpc
pseries_le_defconfig) produced many warnings like this:

Run /init as init process
mount (55) used greatest stack depth: 28240 bytes left
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at mm/rmap.c:443 unlink_anon_vmas+0x23c/0x358
Modules linked in:
CPU: 0 UID: 0 PID: 1 Comm: init Not tainted 6.11.0-rc5-06732-g133a683d26fd #14
Hardware name: IBM pSeries (emulated by qemu) POWER8 (architected) 0x4d0200 0xf000004 of:SLOF,HEAD pSeries
NIP:  c0000000004d0208 LR: c0000000004d0158 CTR: c00000000121d230
REGS: c0000000049bf550 TRAP: 0700   Not tainted  (6.11.0-rc5-06732-g133a683d26fd)
MSR:  800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 44004222  XER: 20000000
CFAR: c0000000004d019c IRQMASK: 0 
GPR00: c0000000004d0158 c0000000049bf7f0 c00000000167b100 c000000008b5e2b0 
GPR04: c000000008b5e300 0000000000000006 c00000000445a108 0000000000000000 
GPR08: 0000000000000000 0000000000000001 ffffffffffffffff c0000000013550d8 
GPR12: 0000000000000000 c000000002b90000 0000000000000000 0000000000000000 
GPR16: 0000000000000000 c000000006cea000 c00000000405e3c0 c000000006556500 
GPR20: c000000006ce5000 c000000002a30308 0000000000000000 c000000008ba8398 
GPR24: c000000008ba8388 c000000008b60310 c000000002acb790 5deadbeef0000100 
GPR28: c000000008ba8398 5deadbeef0000122 c000000008ba8388 c000000008b60300 
NIP [c0000000004d0208] unlink_anon_vmas+0x23c/0x358
LR [c0000000004d0158] unlink_anon_vmas+0x18c/0x358
Call Trace:
[c0000000049bf7f0] [c0000000004d00f0] unlink_anon_vmas+0x124/0x358 (unreliable)
[c0000000049bf860] [c0000000004a7eec] free_pgtables+0x1d0/0x368
[c0000000049bf930] [c0000000004bce20] exit_mmap+0x1c0/0x578
[c0000000049bfa70] [c000000000151f80] __mmput+0x60/0x1e0
[c0000000049bfaa0] [c0000000005a6980] begin_new_exec+0x6e0/0xed0
[c0000000049bfb20] [c0000000006405a8] load_elf_binary+0x460/0x1b68
[c0000000049bfc70] [c0000000005a4088] bprm_execve+0x2ac/0x754
[c0000000049bfd40] [c0000000005a5de0] do_execveat_common+0x188/0x250
[c0000000049bfde0] [c0000000005a71c4] sys_execve+0x54/0x6c
[c0000000049bfe10] [c000000000030980] system_call_exception+0x120/0x310
[c0000000049bfe50] [c00000000000d6a0] system_call_common+0x160/0x2c4
--- interrupt: c00 at 0x7fff98ea1638
NIP:  00007fff98ea1638 LR: 000000001004a12c CTR: 0000000000000000
REGS: c0000000049bfe80 TRAP: 0c00   Not tainted  (6.11.0-rc5-06732-g133a683d26fd)
MSR:  800000000280f033 <SF,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE>  CR: 22002824  XER: 00000000
IRQMASK: 0 
GPR00: 000000000000000b 00007fffcec19410 00007fff98f79900 000001001dc20410 
GPR04: 000001001dc20440 000001001dc20450 0000000000000000 0000000000000000 
GPR08: 000001001dc20410 0000000000000000 0000000000000000 0000000000000000 
GPR12: 0000000000000000 00007fff98ffa9a0 0000000000000000 0000000000000000 
GPR16: 0000000000000000 0000000000000000 0000000000000000 00000000100b8fd0 
GPR20: 00000000100d03a2 00000000100b8f90 0000000000000000 0000000000000000 
GPR24: 0000000000000000 00000000100e77b8 00000000100b8700 00000000100d03e6 
GPR28: 000001001dc20450 00000000100d03e6 000001001dc20410 000001001dc20440 
NIP [00007fff98ea1638] 0x7fff98ea1638
LR [000000001004a12c] 0x1004a12c
--- interrupt: c00
Code: fbbf0018 7fdff378 48033221 60000000 ebd90000 7c39e040 3bdefff0 418200a8 e87f0008 e9430038 312affff 7d295110 <0b090000> e9430040 312affff 7d295110 
---[ end trace 0000000000000000 ]---
mkdir (59) used greatest stack depth: 28176 bytes left

Bisected to commit

  1cd7eb306a54 ("vma remove the unneeded avc bound with non-CoWed folio")

I have reverted that commit for today.

-- 
Cheers,
Stephen Rothwell

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             reply	other threads:[~2024-08-26  9:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-26  9:46 Stephen Rothwell [this message]
2024-08-26  9:59 ` linux-next: boot warning after merge of the mm tree zhiguojiang
2024-08-27 23:36 ` Stephen Rothwell
  -- strict thread matches above, loose matches on Subject: below --
2023-09-19  6:25 Stephen Rothwell
2023-09-19 15:20 ` Mike Rapoport

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