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Kernal for redmi 12 5g #1

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ghost opened this issue Sep 23, 2023 · 0 comments
Open

Kernal for redmi 12 5g #1

ghost opened this issue Sep 23, 2023 · 0 comments

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@ghost
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ghost commented Sep 23, 2023

It's the kernal for sky codename
miju12 pushed a commit to miju12/device_xiaomi_sky-kernel that referenced this issue Dec 25, 2024
@minchank @miju12
UPSTREAM: kernfs: prevent early freeing of root node
7835d9f 
Marek reported the warning below.

  =========================
  WARNING: held lock freed!
  5.16.0-rc2+ #10984 Not tainted
  -------------------------
  kworker/1:0/18 is freeing memory ffff00004034e200-ffff00004034e3ff,
with a lock still held there!
  ffff00004034e348 (&root->kernfs_rwsem){++++}-{3:3}, at:
__kernfs_remove+0x310/0x37c
  3 locks held by kworker/1:0/18:
   #0: ffff000040107938 ((wq_completion)cgroup_destroy){+.+.}-{0:0}, at:
process_one_work+0x1f0/0x6f0
   sm4450-development#1: ffff80000b55bdc0
((work_completion)(&(&css->destroy_rwork)->work)){+.+.}-{0:0}, at:
process_one_work+0x1f0/0x6f0
   #2: ffff00004034e348 (&root->kernfs_rwsem){++++}-{3:3}, at:
__kernfs_remove+0x310/0x37c

  stack backtrace:
  CPU: 1 PID: 18 Comm: kworker/1:0 Not tainted 5.16.0-rc2+ #10984
  Hardware name: Raspberry Pi 4 Model B (DT)
  Workqueue: cgroup_destroy css_free_rwork_fn
  Call trace:
   dump_backtrace+0x0/0x1ac
   show_stack+0x18/0x24
   dump_stack_lvl+0x8c/0xb8
   dump_stack+0x18/0x34
   debug_check_no_locks_freed+0x124/0x140
   kfree+0xf0/0x3a4
   kernfs_put+0x1f8/0x224
   __kernfs_remove+0x1b8/0x37c
   kernfs_destroy_root+0x38/0x50
   css_free_rwork_fn+0x288/0x3d4
   process_one_work+0x288/0x6f0
   worker_thread+0x74/0x470
   kthread+0x188/0x194
   ret_from_fork+0x10/0x20

Since kernfs moves the kernfs_rwsem lock into root, it couldn't hold
the lock when the root node is tearing down. Thus, get the refcount
of root node.

Fixes: 393c3714081a ("kernfs: switch global kernfs_rwsem lock to per-fs lock")
Reported-by: Marek Szyprowski <[email protected]>
Tested-by: Marek Szyprowski <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Minchan Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

(cherry picked from commit 555a0ce4558d87d5b97c4321f34b19e051c7b0c1)

Bug: 320903885
Change-Id: If96f85b88b662e88430c9c8d1efb436e9a80ddcf
Signed-off-by: Suren Baghdasaryan <[email protected]>
Signed-off-by: fjrXTR <[email protected]>
miju12 pushed a commit to miju12/device_xiaomi_sky-kernel that referenced this issue Dec 25, 2024
@minchank @miju12
UPSTREAM: kernfs: fix NULL dereferencing in kernfs_remove
4a23e99 
kernfs_remove supported NULL kernfs_node param to bail out but revent
per-fs lock change introduced regression that dereferencing the
param without NULL check so kernel goes crash.

This patch checks the NULL kernfs_node in kernfs_remove and if so,
just return.

Quote from bug report by Jirka

```
The bug is triggered by running NAS Parallel benchmark suite on
SuperMicro servers with 2x Xeon(R) Gold 6126 CPU. Here is the error
log:

[  247.035564] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  247.036009] #PF: supervisor read access in kernel mode
[  247.036009] #PF: error_code(0x0000) - not-present page
[  247.036009] PGD 0 P4D 0
[  247.036009] Oops: 0000 [sm4450-development#1] PREEMPT SMP PTI
[  247.058060] CPU: 1 PID: 6546 Comm: umount Not tainted
5.16.0393c3714081a53795bbff0e985d24146def6f57f+ #16
[  247.058060] Hardware name: Supermicro Super Server/X11DDW-L, BIOS
2.0b 03/07/2018
[  247.058060] RIP: 0010:kernfs_remove+0x8/0x50
[  247.058060] Code: 4c 89 e0 5b 5d 41 5c 41 5d 41 5e c3 49 c7 c4 f4
ff ff ff eb b2 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00
41 54 55 <48> 8b 47 08 48 89 fd 48 85 c0 48 0f 44 c7 4c 8b 60 50 49 83
c4 60
[  247.058060] RSP: 0018:ffffbbfa48a27e48 EFLAGS: 00010246
[  247.058060] RAX: 0000000000000001 RBX: ffffffff89e31f98 RCX: 0000000080200018
[  247.058060] RDX: 0000000080200019 RSI: fffff6760786c900 RDI: 0000000000000000
[  247.058060] RBP: ffffffff89e31f98 R08: ffff926b61b24d00 R09: 0000000080200018
[  247.122048] R10: ffff926b61b24d00 R11: ffff926a8040c000 R12: ffff927bd09a2000
[  247.122048] R13: ffffffff89e31fa0 R14: dead000000000122 R15: dead000000000100
[  247.122048] FS:  00007f01be0a8c40(0000) GS:ffff926fa8e40000(0000)
knlGS:0000000000000000
[  247.122048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  247.122048] CR2: 0000000000000008 CR3: 00000001145c6003 CR4: 00000000007706e0
[  247.122048] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  247.122048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  247.122048] PKRU: 55555554
[  247.122048] Call Trace:
[  247.122048]  <TASK>
[  247.122048]  rdt_kill_sb+0x29d/0x350
[  247.122048]  deactivate_locked_super+0x36/0xa0
[  247.122048]  cleanup_mnt+0x131/0x190
[  247.122048]  task_work_run+0x5c/0x90
[  247.122048]  exit_to_user_mode_prepare+0x229/0x230
[  247.122048]  syscall_exit_to_user_mode+0x18/0x40
[  247.122048]  do_syscall_64+0x48/0x90
[  247.122048]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  247.122048] RIP: 0033:0x7f01be2d735b
```

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215696
Link: https://lore.kernel.org/lkml/CAE4VaGDZr_4wzRn2___eDYRtmdPaGGJdzu_LCSkJYuY9BEO3cw@mail.gmail.com/
Fixes: 393c3714081a (kernfs: switch global kernfs_rwsem lock to per-fs lock)
Cc: [email protected]
Reported-by: Jirka Hladky <[email protected]>
Tested-by: Jirka Hladky <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Minchan Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

(cherry picked from commit ad8d869343ae4a07a2038a4ca923f699308c8323)

Bug: 320903885
Bug: 219424218
Bug: 206126556
Change-Id: I5b0a491231ee8913b7f522f22349c22ba0e07d88
Signed-off-by: Suren Baghdasaryan <[email protected]>
Signed-off-by: fjrXTR <[email protected]>
miju12 pushed a commit to miju12/device_xiaomi_sky-kernel that referenced this issue Dec 25, 2024
@alexshi @miju12
mm/vmscan: remove unnecessary lruvec adding
4c94484 
We don't have to add a freeable page into lru and then remove from it.
This change saves a couple of actions and makes the moving more clear.

The SetPageLRU needs to be kept before put_page_testzero for list
integrity, otherwise:

  #0 move_pages_to_lru             sm4450-development#1 release_pages
  if !put_page_testzero
     			           if (put_page_testzero())
     			              !PageLRU //skip lru_lock
     SetPageLRU()
     list_add(&page->lru,)
                                         list_add(&page->lru,)

[[email protected]: coding style fixes]

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Alex Shi <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Alexander Duyck <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: "Chen, Rong A" <[email protected]>
Cc: Daniel Jordan <[email protected]>
Cc: "Huang, Ying" <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mika Penttilä <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: Shakeel Butt <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: Yang Shi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: fjrXTR <[email protected]>
miju12 pushed a commit to miju12/device_xiaomi_sky-kernel that referenced this issue Dec 25, 2024
@ftang1 @miju12
mm/damon/core-test: initialise context before test in damon_test_set_…
23fa72d 
…attrs()

Running kunit test for 6.5-rc1 hits one bug:

        ok 10 damon_test_update_monitoring_result
    general protection fault, probably for non-canonical address 0x1bffa5c419cfb81: 0000 [sm4450-development#1] PREEMPT SMP NOPTI
    CPU: 1 PID: 110 Comm: kunit_try_catch Tainted: G                 N 6.5.0-rc2 #15
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
    RIP: 0010:damon_set_attrs+0xb9/0x120
    Code: f8 00 00 00 4c 8d 58 e0 48 39 c3 74 ba 41 ba 59 17 b7 d1 49 8b 43 10 4d
    8d 4b 10 48 8d 70 e0 49 39 c1 74 50 49 8b 40 08 31 d2 <69> 4e 18 10 27 00 00
    49 f7 30 31 d2 48 89 c5 89 c8 f7 f5 31 d2 89
    RSP: 0000:ffffc900005bfd40 EFLAGS: 00010246
    RAX: ffffffff81159fc0 RBX: ffffc900005bfeb8 RCX: 0000000000000000
    RDX: 0000000000000000 RSI: 01bffa5c419cfb69 RDI: ffffc900005bfd70
    RBP: ffffc90000013c10 R08: ffffc900005bfdc0 R09: ffffffff81ff10ed
    R10: 00000000d1b71759 R11: ffffffff81ff10dd R12: ffffc90000013a78
    R13: ffff88810eb78180 R14: ffffffff818297c0 R15: ffffc90000013c28
    FS:  0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 0000000000000000 CR3: 0000000002a1c001 CR4: 0000000000370ee0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    Call Trace:
     <TASK>
     damon_test_set_attrs+0x63/0x1f0
     kunit_generic_run_threadfn_adapter+0x17/0x30
     kthread+0xfd/0x130

The problem seems to be related with the damon_ctx was used without
being initialized. Fix it by adding the initialization.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: aa13779be6b7 ("mm/damon/core-test: add a test for damon_set_attrs()")
Signed-off-by: Feng Tang <[email protected]>
Reviewed-by: SeongJae Park <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: fjrXTR <[email protected]>
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