384.13 RTC-AC3200 kernel: BUG: scheduling while atomic

[Nigel Jones]

I've started noticing these errors on my RT-AC3200 running 384.13

Is it purely a linux scheduling issue? Storage problem? Harmless? Serious?

Oct 29 23:35:59 kernel: BUG: scheduling while atomic: mtdblock3/27/0x00000002
Oct 29 23:35:59 kernel: BUG: scheduling while atomic: mtdblock3/27/0x00000002
Oct 29 23:35:59 kernel: module: tun 7f029000 12274
Oct 29 23:35:59 kernel: module: tdts_udbfw 7f0a6000 26092
Oct 29 23:35:59 kernel: module: tdts_udb 7f06c000 180247
Oct 29 23:35:59 kernel: module: tdts 7f439000 416313
Oct 29 23:35:59 kernel: module: nf_nat_sip 7f432000 5031
Oct 29 23:35:59 kernel: module: nf_conntrack_sip 7f429000 15713
Oct 29 23:35:59 kernel: module: nf_nat_h323 7f422000 4761
Oct 29 23:35:59 kernel: module: nf_conntrack_h323 7f414000 33807
Oct 29 23:35:59 kernel: module: nf_nat_rtsp 7f40e000 3202
Oct 29 23:35:59 kernel: module: nf_conntrack_rtsp 7f408000 4067
Oct 29 23:35:59 kernel: module: nf_nat_ftp 7f402000 1144
Oct 29 23:35:59 kernel: module: nf_conntrack_ftp 7f3fb000 4909
Oct 29 23:35:59 kernel: module: ip6table_mangle 7f3f5000 934
Oct 29 23:35:59 kernel: module: sr_mod 7f3ed000 10842
Oct 29 23:35:59 kernel: module: xt_length 7f3e7000 769
Oct 29 23:35:59 kernel: module: cdrom 7f3da000 30901
Oct 29 23:35:59 kernel: module: ip6t_ROUTE 7f3d4000 2954
Oct 29 23:35:59 kernel: module: ip6t_REJECT 7f3ce000 2224
Oct 29 23:35:59 kernel: module: usblp 7f3c6000 10321
Oct 29 23:35:59 kernel: module: thfsplus 7f3a9000 85357
Oct 29 23:35:59 kernel: module: tntfs 7f329000 468922
Oct 29 23:35:59 kernel: module: tfat 7f2f0000 191259
Oct 29 23:35:59 kernel: module: ext2 7f2db000 53788
Oct 29 23:35:59 kernel: module: ext4 7f29a000 222306
Oct 29 23:35:59 kernel: module: jbd2 7f286000 49553
Oct 29 23:35:59 kernel: module: crc16 7f280000 1007
Oct 29 23:35:59 kernel: module: ext3 7f25d000 106589
Oct 29 23:35:59 kernel: module: jbd 7f24c000 42799
Oct 29 23:35:59 kernel: module: mbcache 7f245000 4599
Oct 29 23:35:59 kernel: module: usb_storage 7f236000 34410
Oct 29 23:35:59 kernel: module: sg 7f22b000 20039
Oct 29 23:35:59 kernel: module: sd_mod 7f21f000 22167
Oct 29 23:35:59 kernel: module: scsi_wait_scan 7f219000 416
Oct 29 23:35:59 kernel: module: scsi_mod 7f1f4000 108826
Oct 29 23:35:59 kernel: module: ohci_hcd 7f1ea000 17918
Oct 29 23:35:59 kernel: module: ehci_hcd 7f1dd000 31653
Oct 29 23:35:59 kernel: module: xhci_hcd 7f1ca000 51124
Oct 29 23:35:59 kernel: module: cdc_mbim 7f1c4000 3129
Oct 29 23:35:59 kernel: module: qmi_wwan 7f1bd000 5780
Oct 29 23:35:59 kernel: module: cdc_wdm 7f1b6000 7252
Oct 29 23:35:59 kernel: module: cdc_ncm 7f1ae000 8750
Oct 29 23:35:59 kernel: module: rndis_host 7f1a7000 4936
Oct 29 23:35:59 kernel: module: cdc_ether 7f1a1000 3187
Oct 29 23:35:59 kernel: module: asix 7f199000 10832
Oct 29 23:35:59 kernel: module: cdc_acm 7f191000 10357
Oct 29 23:35:59 kernel: module: usbnet 7f188000 11161
Oct 29 23:35:59 kernel: module: mii 7f182000 3367
Oct 29 23:35:59 kernel: module: usbcore 7f15f000 102094
Oct 29 23:35:59 kernel: module: ebt_ip 7f159000 1322
Oct 29 23:35:59 kernel: module: ebtable_broute 7f153000 873
Oct 29 23:35:59 kernel: module: ebtable_filter 7f14d000 1061
Oct 29 23:35:59 kernel: module: ebtables 7f144000 15643
Oct 29 23:35:59 kernel: module: ip6t_LOG 7f13d000 4494
Oct 29 23:35:59 kernel: module: ip6table_filter 7f137000 750
Oct 29 23:35:59 kernel: module: jffs2 7f119000 91538
Oct 29 23:35:59 kernel: module: zlib_deflate 7f10f000 19489
Oct 29 23:35:59 kernel: module: dhd 7f02e000 242573
Oct 29 23:35:59 kernel: module: et 7f01b000 48925
Oct 29 23:35:59 kernel: module: igs 7f013000 11927
Oct 29 23:35:59 kernel: module: emf 7f00a000 15345
Oct 29 23:35:59 kernel: module: ctf 7f000000 19647
Oct 29 23:35:59 kernel: Modules linked in: tun tdts_udbfw tdts_udb(P) tdts(P) nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 nf_nat_rtsp nf_conntrack_rtsp nf_nat_ftp nf_conntrack_ftp ip6table_mangle sr_mod xt_length cdrom ip6t_ROUTE ip6t_REJECT usblp thfsplus tntfs(P) tfat(P) ext2 ext4 jbd2 crc16 ext3 jbd mbcache usb_storage sg sd_mod scsi_wait_scan scsi_mod ohci_hcd ehci_hcd xhci_hcd cdc_mbim qmi_wwan cdc_wdm cdc_ncm rndis_host cdc_ether asix cdc_acm usbnet mii usbcore ebt_ip ebtable_broute
Oct 29 23:35:59 kernel: [<80055ff8>] (unwind_backtrace+0x0/0xf8) from [<80307fbc>] (schedule+0x434/0x784)
Oct 29 23:35:59 kernel: [<80307fbc>] (schedule+0x434/0x784) from [<803086fc>] (schedule_timeout+0x130/0x1c0)
Oct 29 23:35:59 kernel: [<803086fc>] (schedule_timeout+0x130/0x1c0) from [<8030858c>] (io_schedule_timeout+0x5c/0x84)
Oct 29 23:35:59 kernel: [<8030858c>] (io_schedule_timeout+0x5c/0x84) from [<800be1a4>] (congestion_wait+0x74/0x94)
Oct 29 23:35:59 kernel: [<800be1a4>] (congestion_wait+0x74/0x94) from [<800b1b30>] (__alloc_pages_nodemask+0x408/0x58c)
Oct 29 23:35:59 kernel: [<800b1b30>] (__alloc_pages_nodemask+0x408/0x58c) from [<803baba8>] (__slab_alloc+0x808/0x8c4)
Oct 29 23:35:59 kernel: [<803baba8>] (__slab_alloc+0x808/0x8c4) from [<800d78b0>] (__kmalloc+0xf4/0x104)
Oct 29 23:35:59 kernel: [<800d78b0>] (__kmalloc+0xf4/0x104) from [<801d127c>] (_nflash_mtd_read+0x9c/0x3a0)
Oct 29 23:35:59 kernel: [<801d127c>] (_nflash_mtd_read+0x9c/0x3a0) from [<801d1a64>] (nflash_mtd_read+0x4c/0x64)
Oct 29 23:35:59 kernel: [<801d1a64>] (nflash_mtd_read+0x4c/0x64) from [<801b4604>] (part_read+0x64/0xe8)
Oct 29 23:35:59 kernel: [<801b4604>] (part_read+0x64/0xe8) from [<801b7890>] (mtdblock_readsect+0x40/0x114)
Oct 29 23:35:59 kernel: [<801b7890>] (mtdblock_readsect+0x40/0x114) from [<801b7090>] (mtd_blktrans_thread+0x204/0x294)
Oct 29 23:35:59 kernel: [<801b7090>] (mtd_blktrans_thread+0x204/0x294) from [<8008d9ec>] (kthread+0x88/0x90)
Oct 29 23:35:59 kernel: [<8008d9ec>] (kthread+0x88/0x90) from [<80050b8c>] (kernel_thread_exit+0x0/0x8)

 

[dave14305]

I saw a similar error message when I was testing IPv6. But not since I turned it off.