Oracle Linux System Crash With "redirfs_rem_path2" in the stack trace (Doc ID 2753930.1)

Last updated on MARCH 02, 2021

Applies to:

Symptoms

The system crash.

The stack trace of the crash show:

[7496695.372533] ora_lg00_prh1: page allocation failure: order:4, mode:0x14040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null)
[7496695.378157] ora_lg00_prh1 cpuset=/ mems_allowed=0
[7496695.380668] CPU: 8 PID: 28336 Comm: ora_lg00_prh1 Tainted: G           OE   4.14.35-2025.402.2.1.el7uek.x86_64 #2
[7496695.386491] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015
[7496695.389869] Call Trace:
[7496695.391515]  dump_stack+0x6d/0x89
[7496695.393261]  warn_alloc+0x114/0x1bf
[7496695.395671]  __alloc_pages_slowpath+0x9b7/0xb95
[7496695.398089]  ? bio_endio+0xae/0x135
[7496695.399746]  __alloc_pages_nodemask+0x2b1/0x2fc
[7496695.402402]  alloc_pages_current+0x6a/0xb0
[7496695.404857]  kmalloc_order+0x18/0x39
[7496695.406692]  kmalloc_order_trace+0x2a/0xb4
[7496695.408637]  ? __kmalloc+0x20b/0x213
[7496695.410434]  __kmalloc+0x20b/0x213
[7496695.412378]  QueueItemMemAlloc.isra.0+0x2b/0xa0 [dtrep]
[7496695.414697]  QueueItemCopyDataFromIter+0x23/0xd0 [dtrep]
[7496695.417405]  dtrep_direct_write+0x7b/0x110 [dtrep]
[7496695.420352]  FileWriteIterHook+0x1c1/0x280 [dtfilter]
[7496695.423393]  ? redirfs_get_data_file+0xa4/0xc0 [redirfs]            <<<<<<<<<<<<<<<<<<<<<<<<<<
[7496695.425969]  ? xfs_file_buffered_aio_write+0x2b0/0x2b0 [xfs]
[7496695.429310]  rfs_write_iter+0x1a3/0x240 [redirfs]
[7496695.431567]  __vfs_write+0xfc/0x16d
[7496695.433505]  vfs_write+0xb2/0x1a1
[7496695.436033]  SyS_pwrite64+0x87/0xac
[7496695.438111]  ? down_read+0x12/0x32
[7496695.440058]  tmhook_invoke.isra.9+0x45/0x90 [tmhook]
[7496695.442745]  tmhook_handler+0x1a1/0x290 [tmhook]
[7496695.445672]  do_syscall_64+0x79/0x1b9
[7496695.447444]  entry_SYSCALL_64_after_hwframe+0x16d/0x0
[7496695.449409] RIP: 0033:0x7f9cc3494003
[7496695.451054] RSP: 002b:00007ffcba111428 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[7496695.453787] RAX: ffffffffffffffda RBX: 000000006d012948 RCX: 00007f9cc3494003
[7496695.456999] RDX: 0000000000100000 RSI: 00000000e0165400 RDI: 0000000000000101
[7496695.460112] RBP: 00007ffcba115db0 R08: 0000000000000002 R09: 0000000071f05078
[7496695.463439] R10: 00000000017b5800 R11: 0000000000000246 R12: 0000000000000001
[7496695.466483] R13: 0000000000000200 R14: 000006d18cecdd80 R15: 000000006d012b30
[7496695.469948] Mem-Info:
[7496695.471429] active_anon:4837890 inactive_anon:492724 isolated_anon:0
 active_file:11374553 inactive_file:12152918 isolated_file:0
 unevictable:0 dirty:218 writeback:0 unstable:0
 slab_reclaimable:582151 slab_unreclaimable:111551
 mapped:3532026 shmem:3731581 pagetables:898427 bounce:0
 free:231517 free_pcp:648 free_cma:0
[7496695.486904] Node 0 active_anon:19351560kB inactive_anon:1970896kB active_file:45498212kB inactive_file:48611672kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:14128104kB dirty:872kB writeback:0kB shmem:14926324kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
[7496695.496553] Node 0 DMA free:14916kB min:4kB low:16kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15004kB managed:14916kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[7496695.506523] lowmem_reserve[]: 0 2477 120329 120329 120329
[7496695.508720] Node 0 DMA32 free:474352kB min:892kB low:3368kB high:5844kB active_anon:190872kB inactive_anon:36528kB active_file:802888kB inactive_file:757188kB unevictable:0kB writepending:52kB present:3126628kB managed:2536688kB mlocked:0kB kernel_stack:336kB pagetables:33788kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[7496695.519848] lowmem_reserve[]: 0 0 117852 117852 117852
[7496695.522983] Node 0 Normal free:436800kB min:43492kB low:164164kB high:284836kB active_anon:19160688kB inactive_anon:1934428kB active_file:44695180kB inactive_file:47854304kB unevictable:0kB writepending:564kB present:122683392kB managed:120680472kB mlocked:0kB kernel_stack:39344kB pagetables:3559920kB bounce:0kB free_pcp:2524kB local_pcp:0kB free_cma:0kB
[7496695.535840] lowmem_reserve[]: 0 0 0 0 0
[7496695.537974] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 2*32kB (UM) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 2*1024kB (UM) 2*2048kB (M) 2*4096kB (M) = 14916kB
[7496695.543631] Node 0 DMA32: 3479*4kB (UME) 3354*8kB (UME) 4420*16kB (UMEH) 3411*32kB (UMEH) 1738*64kB (UMEH) 635*128kB (UMEH) 188*256kB (UME) 22*512kB (UM) 0*1024kB 1*2048kB (U) 0*4096kB = 474572kB
[7496695.550352] Node 0 Normal: 59891*4kB (UM) 10213*8kB (UME) 3117*16kB (UMEH) 2052*32kB (UMEH) 3*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 436996kB
[7496695.556515] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[7496695.560699] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 

Changes

Cause

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