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Opened 10 years ago

Closed 10 years ago

Last modified 9 years ago

#2332 closed defect (worksforme)

Random crash with "serial8250: too much work for irq15"

Reported by: nabcore Owned by: developers
Priority: high Milestone: Kamikaze 8.09 RC1
Component: kernel Version:
Keywords: ar7 Cc:

Description

Sometimes, my DG834G(v2) running r8577, will crash/hang with the following message being repeated spewed to the serial port:

serial8250: too much work for irq15
serial8250: too much work for irq15
serial8250: too much work for irq15

I have no idea how this is triggered, and hence no test case :(

Attachments (0)

Change History (6)

comment:1 Changed 10 years ago by florian

  • Milestone changed from Kamikaze 7.09 to 7.10?

comment:2 Changed 10 years ago by nabcore

comment:3 Changed 10 years ago by nabcore

Actually managed to catch this happening on r9426 via serial:

...snip....
[42949373.910000] mtd: partition "rootfs" doesn't start on an erase block bounda                                                                ry -- force read-only
[42949373.930000] mtd: partition "rootfs" set to be root filesystem
[42949373.930000] mtd: partition "rootfs_data" created automatically, ofs=270000                                                                , len=180000
[42949373.940000] 0x00270000-0x003f0000 : "rootfs_data"
[42949373.950000] ar7_wdt: timer margin 59 seconds (prescale 65535, change 57180                                                                , freq 62500000)
[42949373.960000] Registered led device: status
[42949373.970000] vlynq0: regs 0x08611800, irq 29, mem 0x04000000
[42949373.980000] vlynq1: regs 0x08611c00, irq 33, mem 0x0c000000
[42949373.990000] nf_conntrack version 0.5.0 (1024 buckets, 4096 max)
[42949374.000000] ip_tables: (C) 2000-2006 Netfilter Core Team
[42949374.000000] TCP vegas registered
[42949374.010000] NET: Registered protocol family 1
[42949374.010000] NET: Registered protocol family 17
[42949374.020000] 802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
[42949374.020000] All bugs added by David S. Miller <davem@redhat.com>
[42949374.040000] VFS: Mounted root (squashfs filesystem) readonly.
[42949374.050000] Freeing unused kernel memory: 104k freed
[42949374.080000] Warning: unable to open an initial console.
[42949376.020000] Algorithmics/MIPS FPU Emulator v1.5
[42949377.010000] serial8250: too much work for irq15
[42949377.020000] serial8250: too much work for irq15
[42949377.020000] serial8250: too much work for irq15
[42949377.030000] serial8250: too much work for irq15
[42949377.030000] serial8250: too much work for irq15

comment:4 Changed 10 years ago by nabcore

I've not seen this in a while, hence close it.

comment:5 Changed 10 years ago by agb

  • Resolution set to worksforme
  • Status changed from new to closed

You're the boss.

comment:6 Changed 9 years ago by reversed@…

My wag354g isn't booting, i'm getting "serial8250: too much work for irq15" spewed ad nauseaum after "Please be patient, while OpenWrt loads".
Tried 8.09.1 and trunk.

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