Ticket #2326 (new defect)

Opened 9 years ago

Last modified 22 months ago

BUG: sleeping function called from invalid context at /local/lindi/scm/neolinux/kernel/rwsem.c:21

Reported by: lindi Owned by: openmoko-kernel
Priority: normal Milestone:
Component: kernel Version:
Severity: normal Keywords:
Cc: Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: no PatchReviewResult:


I just noticed this when reading old logs, I do not know how to reproduce it but I probably used strace with omhacks. Kernel was andy-tracking a3587e4ed77974ad

[206244.795000] BUG: sleeping function called from invalid context at /local/lindi/scm/neolinux/kernel/rwsem.c:21
[206244.795000] in_atomic(): 0, irqs_disabled(): 128, pid: 7341, name: om
[206244.795000] no locks held by om/7341.
[206244.795000] [<c02aa270>] (dump_stack+0x0/0x14) from [<c004ac98>] (__might_sleep+0x108/0x128)
[206244.795000] [<c004ab90>] (__might_sleep+0x0/0x128) from [<c02ac130>] (down_read+0x28/0x88)
[206244.795000]  r5:c2c36480 r4:00000000
[206244.795000] [<c02ac108>] (down_read+0x0/0x88) from [<c0099170>] (access_process_vm+0x3c/0x18c)
[206244.795000]  r7:c2c367e0 r6:0000961c r5:c2c36480 r4:00000004
[206244.795000] [<c0099134>] (access_process_vm+0x0/0x18c) from [<c003077c>] (swap_insn+0x30/0x64)
[206244.795000] [<c003074c>] (swap_insn+0x0/0x64) from [<c003087c>] (ptrace_cancel_bpt+0xcc/0x12c)
[206244.795000]  r7:00000001 r6:00000000 r5:c2c36480 r4:0000961c
[206244.795000] [<c00307b0>] (ptrace_cancel_bpt+0x0/0x12c) from [<c0030cd4>] (ptrace_break+0x1c/0x58)
[206244.795000] [<c0030cb8>] (ptrace_break+0x0/0x58) from [<c0030d30>] (break_trap+0x20/0x28)
[206244.795000]  r5:e7f001f0 r4:c0030d10
[206244.795000] [<c0030d10>] (break_trap+0x0/0x28) from [<c002e150>] (do_undefinstr+0xe4/0x13c)
[206244.795000] [<c002e06c>] (do_undefinstr+0x0/0x13c) from [<c002ee20>] (ret_from_exception+0x0/0x10)
[206244.795000] Exception stack(0xc2fd1fb0 to 0xc2fd1ff8)
[206244.795000] 1fa0:                                     00009988 00000003 bee003b4 0000b644 
[206244.795000] 1fc0: 00000000 00000000 00009828 00000000 00000000 00000000 40025000 00000000 
[206244.795000] 1fe0: 00009620 bee003a8 00009850 0000961c 60000010 ffffffff                   
[206244.795000]  r8:00000000 r7:00000000 r6:00009828 r5:00000000 r4:0000961c

Change History

comment:1 Changed 22 months ago by Kennescoma

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